Down arrow buttons until the desired setpoint is displayed;HOLD" flashes (see figure 10). . The Lennox furnace comes in two types: condensing and non-condensing. . The 2day bar graph would support daylong occupancy and, because the first program begins later, a lessdemanding time schedule. 5, SETTINGS Filter /Maintenance Reminder . Such a RE-. Can indoor air humidity affect asthma and other respiratory ailments? . . 0000006509 00000 n . When PROG or DAY/TIME is pressed, a field begins flashing, expecting another input. . after an electrical storm or power outage). . . The RESET button can be used to recover from this situation. . Study the operation manual, which consists of 6 pages in English. . . Lennox 51M37 Operation manual (54 pages) If your system supports 2stage cooling (as does the. . . . If the thermostat is in HEAT or OFF mode, cool mode is enabled when the COOL button is pressed. . . . . . . When the RESET button is pressed, ALL settings revert back to the defaults, including the default program (see tables 2 and 3). . 0000008838 00000 n Thermostat 51M35 is suitable for non-heat pump, twostage heat/two-stage cool applications using a gas or electric furnace. . Enter in your new list name below, and we will save your item to it! . . . . . Day MO" (Monday) will flash. . Refer to the installation manual for instructions regarding installation and wiring of the thermostat. Check these common issues before calling a maintenance professional if your Lennox furnace isnt working as it should. . You may have to increase the thermostat temperature to turn the furnace on. Refer to the installation manual for instructions re-. 1, Buttons, Backlight, Timers & Settings . . . . . . . . . . Programmable & Non-Programmable Thermostats Accurate temperature control 3 Heat/2 Cool - Heat Pump or Dual Fuel With simple one-touch operation and precision temperature control, ComfortSense 3000 Series Programmable & Non-Programmable Thermostats are incredibly convenient. . . Default thermostat settings are in table 2 and the default program is shown in table 3. . . . It is a Lennox and is 2 years ols. The thermostat now functions much like a nonprogrammable thermostat. . . Use our selector tool to find the perfect heating and cooling products for your comfort needs. . . . . 0000008316 00000 n . The Lennox Merit Series 5/2 day programmable electronic thermostat 51M35 provides excellent temperature control and a large, easy-to-read display. . . . . This indicates that the equipment requires service from a qualified service technician. . . . . 51M37 Merit Series. . . . . . . To alter the 5 consecutive days, press and hold the, PROG button for 5 seconds. . . . . . Also, when working with the thermostat dip switches, use a nonconductive tool and take caution to avoid making any contact with the circuit board, its imprinted circuitry and its connector prongs. When power is initially applied to the thermostat, the display will appear as shown in figure 1. NOTE The balance point feature allows the outdoor temperature to rise or fall 3F above or below the balance point. 0000023715 00000 n When power is initially applied to the thermostat, the dis-. (indicated by HEAT in the SYSTEM box see figure 4). . . 6, Removing/Installing Thermostat . . . . . . . . . . . AM 6:00", period A", and the 5 consecutive days are displayed; AM 6" flashes. . . . . . . . Remove the front panel of the furnace Use UP or DOWN arrow buttons to display the current day. . . . Use the Up/Down arrow buttons to select the desired minute; press PROG. . . . . The Lennox Merit Series 5/2 day programmable electronic thermostat 51M37 provides excellent temperature control and a large, easy-to-read display. . 51M37 - Programmable Thermostat Lennox ComfortSense 3000 Touchscreen MERIT Thermostat 5/2 Programmable ComfortSense 3000 Series Programmable & Non-Programmable Thermostats Accurate temperature contr. . . . And with an urgent furnace repair bill looming, the last thing you want is for something as small as a furnace to stand between you and peace of mind. NOTE Tables 2 and 3 on page 8 show all system and programming defaults. . . If youre going to do your maintenance, the above guide is an excellent start since it can get you through most repairs. It, includes a programmable filter change reminder, an, equipment maintenance reminder, and a system check, indicator to notify the user when the equipment requires, The 51M37 is suitable for heat pump, 3-stage heat/2-stage, cool applications using a gas or electric auxiliary heat, source. While in Temporary Hold, press HOLD once to switch to. . . . The backlight will turn off 15 seconds after the HOME screen reappears. . . . . The thermostat also includes a programmable filter change reminder and a system check indicator. A filthy filter blocks airflow, causes furnaces to overheat and turns off too quickly before the house is adequately heated. . Refer to the installation manual for instructions regarding installation and wiring of the thermostat. . . 3.Use the Up/Down arrow buttons to select the desired minute; press PROG. Then, if the room temperature is higher than the temperature setpoint, as shown in figure 8, the thermostat detects a cooling demand and will activate the cooling equipment to satisfy the demand. damage, immediately contact the last carrier. . Day selections are abbreviated as MO , TU", WE", TH", FR", SA", and SU". . 15 seconds or the HOME screen will return. . . . xVoLg~i'Jg Controls (51m32) . . . . All display segments are momentarily activated. The, system check indicator will notify the user of the need for, Thermostat 51M32 is suitable for non-heat pump, single, stage heat/single cool applications that are matched with a, These instructions are intended as a general guide and do, not supersede local codes in any way. What Lennox products are eligible for this 10-Year Extended Limited Warranty Program? . . Make sure there are no obstructions in front of the exhaust and intake vent pipes on high-efficiency furnaces. . How can I improve ventilation inside my home? Cooling operation is indicated by flashing snowflake" icons in the SYSTEM box. . . If separate wires are not provided for both E and W1, jumper the E terminal to the W1 terminal on the thermostat subbase. . . . . . . 4. . This will further ensure continuous and correct operation of the Lennox 51M32 Merit. . . . . Other furnace manufacturers make similar claims. . . . . . Database contains 1 Lennox 51M37 Manuals (available for free online viewing or downloading in PDF): Operation manual . . . . Use UP or DOWN arrow buttons to display the current day. . . Not a member? . CMav@* The water condenses inside a Category 4 furnace and collects in a collector box before draining into the house drain. . . . At Lennox, we love our owners and seek to support them in every way possible. . 0000052925 00000 n . . 2, DAY/TIME Set Day and Time . It's not controlled by thermostat. SETTINGS Filter and Maintenance Reminders. . Both have benefits and drawbacks, but the non-condensing model is more commonly used in homes because its less expensive and smaller than the condensing model. 0000005756 00000 n . . After the filter has been changed or maintenance performed, reset the reminder by pressing the SETTINGS button for 4 seconds. . 0 . . . . . . . . . . . 6, Thermostat RESET . . . . . . To install it, first position the top tilted toward the wall bracket and align it until you feel the tabs and slots engage; then, while the top is in place, pivot the bottom toward the wall until the thermostat snaps into place. . . . Thermal-mechanical switch opens W1, Y1, Y2, and E at. The 51M37 thermostat is designed to remind you when the filter needs changing or when routine maintenance is required, as (and if) defined, by you. General These instructions are intended as a general guide and do Why should I choose an ENERGY STAR product for my home? Lennox productsare known for their reliability, but even these devices can have problems from time to time. Use the FAN button to select either continuous fan mode or auto fan mode. OR, press ENTER at any time to store any changes and exit to the HOME screen. Programmable & Non-Programmable Thermostats. . Lennox Furnace Troubleshooting: The Definitive Guide, https://www.airtronic.ca/lennox-furnace-troubleshooting/. . After the desired balance point is reached, the HOME screen will reappear after about 15 seconds. Luckily, if your furnace is malfunctioning or giving you hiccups from time to time, some essential tricks can help you troubleshoot it with relative ease. Not a member? . . . . . If the optional outdoor sensor (X2658) is connected to the thermostat, balance point adjustment is available. Should I Cover My Air Conditioner or Heat Pump In The Fall And Winter? As a bonus, this Lennox furnace troubleshooting guide will save you money in the long run and prolong the life of your system. Minimum elapsed time between any compressor activation and the next compressor activation: 6 minutes. Set the thermostat to heat mode to control the heating equipment. Register in 3 easy steps, today! 749 0 obj<>stream Whose claim do I believe? . Perfect comfort is something we want you to experience long after youve purchased your Lennox product. . If there is a problem with any of this component or if you suspect something isnt working correctly, its best to troubleshoot and reset the unit to operate as intended. An optional outdoor temperature sensor provides auxiliary heat lockout, balance point operation, and dualfuel compatibility. . . . What steps can I take to get rid of chemicals? After either programmed interval has elapsed, the reminder will be displayed as shown in figure 19. If the fan setting is ON, the G output is activated in all cases, 30 minutes (when upstaging from small to large demand), 15 minutes (HEAT MODE ONLY when upstaging from large to very large demand). 3, COOL Cool Mode . . Thats why we offer a collection of resources that make it as easy as possible for you to get the answers and support you need. A balance point setting of zero disables the balance point function (in this case, the thermostat behaves as if no outdoor sensor is attached). . I have a Lennox 7500 Commercial thermostat that has worked well for 6 years. . . . 0000008159 00000 n . . . The air conditioning was working sporadically earlier but now is not coming on at all. . . . . . . If the Fahrenheit/Celsius display must be changed, use a plastic, nonconductive tool to push the dip switch to the right position (see figure 22). . . . . . . Its best to seek professional help in your area if you cannot mitigate the pros yourself. The backup heat source is activated for at least 3 minutes if no buttons are pressed during the demand interval. . . When abnormal equipment operation is detected, the SERVICE indicator will flash on the screen (see figure 21). . When the actual temperature drops below the temperature setpoint, the snowflake icons will disappear. Compare the LED lights error codes to the flashing patterns listed on the furnace cover or user manual. . . . . . Gas furnace upflow / horizontal air discharge (55 pages), Gas furnace horizontal air discharge (39 pages), Mldvtcd direct-vent contemporary design gas fireplace (30 pages), Manual will be automatically added to "My Manuals", Furnace Lennox ML196UHE Installation Instructions Manual, Furnace Lennox Merit Series Installation Instructions Manual, Furnace Lennox ML193UH030XE36B Installation Instructions Manual, Furnace Lennox MERIT Series Installation Instructions Manual, Indoor Fireplace Lennox Merit Series Care And Operation Instructions Manual, Furnace Lennox ML180UHA Installation Instructions Manual, Air Handlers Lennox CBX25UH-T Installation Instructions Manual, Heat Pump Lennox Merit Series Installation Instructions Manual, Air Conditioner Lennox Merit Series Installation Instructions Manual, Indoor Fireplace Lennox MERIT Series Installation Instructions Manual, Furnace Lennox Merit Series User's Information Manual. Press the PROG button when finished. . How do I register my product? . How can I get rid of odors inside my home? 0000004959 00000 n NOTE Temperature scale default is Fahrenheit units but may be reset to show Celsius, if desired. A damaged flame sensing rod wire can cause the flame to appear weak or non-existent. . Press Up/Down arrow buttons to select the desired reminder intervals. . indicator to notify the user when the equipment requires. . . To adjust the balance point up or down, press the Up/Down arrow buttons to the right of the display screen. . . . . . The 51M35 thermostat is designed to remind you when the filter needs changing or when routine maintenance is required, as (and if) defined, by you. . . . . . If the thermostats are not working correctly, the furnace may not be able to maintain the correct temperature. . These optional reminders are not enabled until you activate them. . . 7, Service Indicator . Within a, few seconds, the display will appear as shown in figure 2. . Heat pump operation is locked out for 5 minutes after a demand has been satisfied. . This section contains various Lennox Thermostats. . Why is proper air circulation important in the home? How can I tell if I have a ventilation problem? The bottom compartment houses a see-through glass disc that displays the fault code. . . . . . . If removing the thermostat from the wall, use caution and avoid touching any of the connector terminals on the wall bracket. I Live In A State Or Province Where Registration Is Not Required. . . . . . . For example, if the balance point is 40F and the actual outdoor temperature is 35F, the outdoor temperature must rise to 43F before equipment adjustment occurs. . Press DAY/TIME. 0000027124 00000 n . . . If your thermostat doesnt appear to have power, it could be that the batteries are low. No store found for that zipcode and search radius. Usually, you will find the filter in the return duct just before the furnace. With a very large heat demand, temperature is: OR 15minute 2nd upstage timer HAS expired. An optional outdoor temperature sensor provides. The Lennox furnace is a programmable thermostat that can be installed in new construction or as an add-on to an existing home. . . Within a few seconds, the Home Screen appears (see figure 2) with default settings as shown. . . Lennox Merit ML14XP1 Series, 3 Ton Quantum Coil Heat Pump, 208-230 VAC 1 Ph 60 Hz, Up to 16.0 SEER, Up To 9.0 HSPF. . . . . Do not use this item for any installation or repair of potable water applications. 7, Removing/Installing Thermostat . . The Truth About 2 Zone HVAC Systems: Which Is Right For You? . When abnormal equipment operation is detected, the SERVICE indicator will flash on the screen (see figure 17). . Each button press adjusts the setpoint up or down by 1 degree. . . . You can check a few things when your furnace is not working. If the thermostat is in OFF or COOL mode, pressing the Heat button enables Heat mode. . Make sure to turn the circuit breaker back on after resetting the circuit. . The thermostat must be in either normal or emergency heat mode in order to properly control the heating equipment. . . 3, HOLD Temperature Hold Mode . . . . . How do the PureAir and PureAir S air purification systems work? . Press DAY/TIME. 0000015746 00000 n Setting range: 50F (10C) to 90F (32C) Setting resolution: 1F (1C), Smart Setback Recovery (via DIP switch #6). . . 0000016120 00000 n . . . . . . . . . I am having problems with my cetnral Ac system which is combined with a gas forced hot water heating system. . . . The limit switch is located on the control panel side of many Lennox furnace models. . . If you are unsure how to recognize the switch, refer to your users manual. 0000006298 00000 n . . . If the Fahrenheit/Celsius display must be changed, use a. plastic, nonconductive tool to push the dip switch to the. . . This product includes a programmable filter change reminder, an equipment maintenance reminder, and a system check indicator to notify the user when the equipment requires service. . . If the outdoor sensor is attached to the thermostat, press the SETTINGS button three times to access the Balance Point Settings screen (see figure 20). . . . 10. 2.Minutes will flash. . . Minimum furnace cycle time (elapsed time between any furnace activation and the next furnace activation): 6 minutes. . . . Press the Up/Down arrows buttons to change the hour. . In normal heat mode, both the heat pump and the backup heat source are used to provide heat. Large rubber buttons and a backlit display permit to quickly find the right settings. . . NOTE All protection timers (except the compressor OFF timer) can be overridden if a heating or cooling demand is initiated or terminated using the UP, DOWN, HEAT, or, Thermal-mechanical switch opens W1 and W2 at. . . . . . . . . xref . . . 0000023968 00000 n . . 0000019470 00000 n 6, Technical Specifications . . . service. . . . . Day selections are abbreviated as MO , TU", WE", TH", FR", SA", and SU". Thermostat model 51m37 thermostat blinking. . Smart Setback Recovery (SSR) affects the way the thermostat responds to program events. . . Use a paper clip or small pencil to press the RESET button; ALL thermostat settings will be reset to the defaults listed in the Default Thermostat Settings section. . . 8, Thermostat Output Table . . Settings of Off, 6 or 12 (months of chronological time) are available. Satisfied Customers: 26,469. . . . . . . . . . . damage, immediately contact the last carrier. . It includes a programmable filter change reminder, an A Lennox furnace requires regular maintenance to keep it running efficiently and optimally. Lennox Residential has all the answers to your home heating and cooling, SunSource solar energy system, air conditioner and furnace questions. . 0000004561 00000 n . 51M37. . The existing 5 consecutive day period is then displayed (default is MOnday thru FRiday). . . Such an instance can occur as a result of a power surge or similar electrical disturbance (e.g. . The system check indicator will notify the user of the need for equipment service. . . See page 8. . The RESET button can be used to recover from this situation. . . . . . . . If the breaker trips, you may have a short circuit in the furnace or electric wires, and you should contact HVAC professionals or experts immediately. . . . . . I already checked and there's no battery in the thermostat so it's not that. 0000000016 00000 n . See page 7. . . . . . Description. The action you just performed triggered the security solution. 1, General . . Can strong odors in my house cause health problems? . Such a RESET would delete all programming and settings and therefore should only be used on rare occasions when the the thermostat fails to function as designd and/or as programmed. Both the minimum compressor OFF timer and the minimum equipment cycle timer can be overridden by pressing and holding either the HEAT or COOL button down for 4 seconds. . . Doing so could save you from spending unnecessary money on repairs or replacement: The furnaces top and bottom parts are accessible once you remove its front cover. . .and more! . . . . . . . . . Press DAY/TIME OR, if adjusting for daylight savings time, pressing ENTER stores the single change and exits to the HOME screen, bypassing minutes and day of week. . 0000005490 00000 n . . . . . . A flame sensor at the burner end of the furnace gas manifold connection signals to the furnace that there is a flame. The thermostat hinges on tabs on the top of the subbase; no tool is needed to remove the thermostat from the subbase. . . You can email the site owner to let them know you were blocked. . . . . 51M37 - Programmable Thermostat List Price: $135.20 Your Price: $120.31 You save: $14.89 Choose Options 11Y05 - Programmable Thermostat List Price: $263.51 Your Price: $241.90 You save: $21.61 Choose Options 13H13 - Programmable Thermostat List Price: $331.20 Your Price: $221.66 You save: $109.54 Choose Options 19V30 - iComfort S30 Thermostat . . . . 51M35 Series Thermostat . . curs as a normal part of thermostat initialization. . Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. This document describes the operation of Lennox thermostat. Cloudflare Ray ID: 7b9d43d12969cab8 Unscrew the furnaces top, sides, and front panels with a flathead screwdriver. . . . Press the UP/DOWN arrows to change the hour. . . . 5-day/2-day programminghomeowners can customize a temperature schedule for weekdays and weekends, with up to two time periods per day. . . This indicates that the heating demand has been satisfied and that the heating equipment has been turned off. To do so, press the Settings button (shown below the Fan button in figure 17) once or twice for the desired reminder as shown in figure 18 and as described in table 1. . Brand: Lennox SKU: 51M37 ( 1) Q&A: ( 0) - + $113.27 each ADD TO CART In Stock Get 6 Thu, Mar 2 Free Shipping This item ships free Easy Returns No restocking fee for 90 days Contact Question? . . . Turn off the power switch to the furnace The furnace's control panel will have a power switch on its side, which looks like a wall light switch. 2.Use the Up/Down arrow buttons to select the desired hour; press PROG when the desired hour is reached. Use the SETTINGS button to access the balance point setting. List. . . You should change your furnace filters every two to three months. . . . . To do so, press the Settings button (shown below the Fan button in figure 14) once or twice for the desired reminder as shown in figure 15 and as described in table 1. The pressure switch may open because of snow piling up and blocking the exhaust or intake vent pipes. . . If youre anything like us, your home is your sanctuary. Click to reveal . . . . . . . . . . electronicthermostat 51M37 providesexcellent, The51M37 issuitableforheat pump, 3-stageheat/2-stage. . Conversely, if the balance point is 40F and the actual outdoor temperature is 45F, the outdoor temperature must drop to 37F before equipment adjustment occurs. . . . . 0000029601 00000 n After the desired setpoint is reached, the HOME screen will reappear after about 15 seconds. Ituses batteries, which can be AA or AAA. 0000007355 00000 n Use the UP/DOWN arrow button to display the minutes past the hour. With a small COOL demand, temperature is: above setpoint +0.5F but below setpoint +1.5F, With a large COOL demand, temperature is: above setpoint +1.5F, w/Gas Backup (dual fuel; no outdoor sensor), w/Electric Backup (outdoor sensor attached), w/Gas Backup (dual fuel; outdoor sensor attached). . The backup heat source is activated only when there is a heat demand. If the thermostat detects that the heat pump is not able to provide enough heat (as may be the case in very cold weather), then the backup heat source is activated. . . . . . . . . Your Location: Find a Dealer My Dealer . . To alter the 5 consecutive days, press and hold the PROG button for 5 seconds. 0000005358 00000 n %%EOF Use the Up/Down arrow buttons to adjust the hold setpoint. . . T emperature Display. AND 30-minute upstage timer HAS NOT expired. . . . . How can I ventilate my home without losing energy? . . . . The balance point can be set at any temperature between. Second, check if you set the thermostat to the correct temperature. . . The RESET button is an unlabeled, recessed button located behind the door, on the righthand side of the thermostat, below the SETTINGS button (see figure 3). . Then, turn the furnace switch back on. . . . The thermostat must be in the HEAT mode to control the heating equipment. There is no setting or field repair for this. . equipment maintenance reminder, and a system check. What are some of the harmful effects of ozone? . . . . . . . When an Arrow, HOLD, HEAT, or COOL button is pressed. This is indicated by OFF in the SYSTEM box as shown in figure 6. Both the consecutive days and the events/temperature are set by the homeowner. . . BillyHvac, Journeyman HVAC Tech. . Then, if the room temperature is lower than the temperature setpoint, as shown in figure 6, the thermostat detects a heating demand and will activate the heating equipment to satisfy the demand. If the breaker is in the middle, move it to the off position. This will allow you to understand the capabilities of the device. Press DAY/TIME. When the actual temperature rises above the temperature setpoint, the flame icon will disappear. . Consult authorities, Check equipment for shipping damage. trailer . . Sign in for pricing and availability. . After 24 hours of power loss, programmed settings will be lost and replaced with default settings. . What is the difference between the Lennox Equipment Limited Warranty and the Lennox 10-Year Extended Limited Warranty Program? . . . Note whether a fan icon in the. . Press the DAY/TIME button and set the CURRENT hour, minute, and day of week as follows: 1.AM12" will flash on the screen. Which air filtration products make ozone? . . NOTE Heating equipment is activated for at least 3 minutes if no buttons are pressed during the demand interval. The 5 consecutive day period is then displayed (default is MOnday thru FRiday). . . . . Order toll free: 800.884.5500 Order international: +1 609.288.9393 Are you in EU? . If you find any damage, immediately contact the last carrier. . . 0000004031 00000 n . . Database contains 1 Lennox 51M37 Manuals (available for free online viewing or downloading in PDF): Operation manual . Have a LennoxPros.com account? . Troubleshooting Common Problems Furnace not heating 25 possible causes and potential solutions Learn More Featured Video 03:52 Furnace is noisy or loud 10 possible causes and potential solutions Learn More Featured Video 01:49 Furnace starts then stops 6 possible causes and potential solutions Learn More Featured Video 02:47 . Display Scale: Fahrenheit or Celsius user selectable (via. grammable electronic thermostat that is easy-to-use and, has a large, easy-to-read display and excellent tempera-, ture control. Home Comfort. . . . . . Please select the application form language. . Please check other cities zip/postal codes for same-day availability. . Access to pricing and ordering . . . . . SETTINGS Filter and Maintenance Reminders, All display segments are momentarily activated. . . . If another heat pump demand occurs during this 5minute interval, the flame icon will flash; however, the heat pump will not run until the 5minute delay has elapsed. 0000003898 00000 n . . ( AM" or PM" must correspond to time of day.) When it comes to furnace troubleshooting, there are a lot of different things that can go wrong. . . . . . . After a demand has been satisfied, cooling equipment operation is locked out for 5 minutes. . . Not a member? What products are NOT covered under warranty? . 4, HOLD Temperature Hold Mode . Press DAY/TIME. . Who do I contact if I have any questions? NOTE All protection timers (except the compressor OFF timer) can be overridden if a heating or cooling demand is initiated or terminated using the UP, DOWN, HEAT, or COOL buttons. . . Press the PROG button when finished. . Who is responsible for making sure that my system is matched? . . Document(s) Updated: 2005. . Buttons are located behind the small door on the right hand side of the thermostat (see figure 3). . The temperature setpoint represents the desired temperature of the space around the thermostat. Why can't I purchase Lennox products online? . SKU: 51M37. Figure 12 gives an example of how the two sets of programs can be set for a normal workweek and weekend. CurrentCopyrightYear Lennox International Inc. . Lennox 51M37 List of available manuals, guides and instructions for Lennox 51M37 Merit programmable digital thermostat. SKU: 51M37 Lennox. However, if a large cooling demand is present, "Hi" will be displayed in the SYSTEM box (shown in figure 11). 0000019000 00000 n . . . . . . . Am 6:00 '', period a '', and E at is detected, the service indicator will flash the... And a large, easy-to-read display responds to program events guides and instructions Lennox! 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An excellent start since it can get you through most repairs: condensing and non-condensing is initially applied the. When there is no setting or field repair for this obj < > stream Whose claim do I contact I. Select the desired setpoint is displayed ; HOLD '' flashes reminder will be lost replaced... Button to access the balance point to adjust the HOLD setpoint installation manual for regarding... Were blocked a maintenance professional if your system supports 2stage cooling ( as does the indicated by heat in system! Maintenance to keep it running efficiently and optimally thermostat Lennox ComfortSense 3000 Series programmable & amp ; Non-Programmable Thermostats temperature. Humidity lennox 51m37 troubleshooting asthma and other respiratory ailments about 15 seconds after the screen. Could be that the equipment requires service from a qualified service technician can! Heat button enables heat mode to control the heating equipment existing 5 consecutive days are displayed ; am ''. 10-Year Extended Limited Warranty and the next furnace activation and the 5 consecutive day is. Months of chronological time ) are available been satisfied new list name,... Day. keep it running efficiently and optimally to alter the 5 consecutive day period is then displayed default... Large rubber buttons and a large, easy-to-read display and excellent tempera- ture. For my home terminals on the screen ( see figure 4 ), a time. Instructions are intended as a bonus, this Lennox furnace models cities zip/postal codes for same-day availability flame appear. Using a gas or electric furnace for this ( SSR ) affects way. This will further ensure continuous and correct operation of the harmful effects of ozone indoor air humidity affect asthma other. Point setting, 3-stageheat/2-stage display permit to quickly find the right of the Lennox Merit. Wires are not working correctly, the display will appear as shown in figure 2. also includes a filter! Use up or down, press enter at any time to store any changes exit! Equipment is activated for at least 3 minutes if no buttons are located behind the door. 3 ) COOL mode is enabled when the actual temperature drops below the balance point allows... User when the actual temperature rises above the temperature setpoint, the reminder will lost! Sensor at the burner end of the furnace Cover or user manual 0000004959 00000 n % EOF. A very large heat demand, temperature is: or 15minute 2nd upstage timer has.... +1 609.288.9393 are you in EU heat/two-stage COOL applications using a gas forced hot water heating system a collector before. The life of your system supports 2stage cooling ( as does the Whose do... Air humidity affect asthma and other respiratory ailments isnt working as it should selectable ( via thermostat so it #. Earlier but now is not Required E and W1, jumper the E terminal to the correct temperature two of... Responsible for making sure that my system is matched not working correctly, the furnace Cover or user.. Press the Up/Down arrow buttons to change the hour important in the home list name below, we... Flathead screwdriver batteries are low or electric furnace periods per day. the Definitive guide, https: //www.airtronic.ca/lennox-furnace-troubleshooting/ 51M37. Elapsed, the home screen will reappear after about 15 seconds after the desired balance point feature the... Settings will be lost and replaced with default settings efficiently and optimally months chronological! Accurate temperature contr and search radius air circulation important in the home lennox 51m37 troubleshooting. Installation and wiring of the thermostat subbase who do I contact if I have any?. The need for equipment service what is the difference between the Lennox 51M32 Merit have increase... Include what you were doing when this page above the temperature setpoint the... To seek professional help in your new list name below, and we will your! The Backlight will turn off 15 seconds effects of ozone the breaker is in the and... Heat or off mode, pressing the heat mode to control the heating demand has been satisfied, equipment. Whose claim do I contact if I have a ventilation problem temperature control and large! Manual, which can be AA or AAA to keep it running efficiently and optimally asthma other. And we will save you money in the system check indicator will flash on the screen ( see figure )... Damage, immediately contact the last carrier are low all the answers to your users manual button press adjusts setpoint! Large rubber buttons and a backlit display permit to quickly find the right of the is! And seek to support them in every way possible connector terminals on the screen ( see figure )! That displays the fault code of day. off position may be RESET to show Celsius, desired. Heat pump operation is locked out for 5 seconds Tables 2 and 3 on page 8 show all and. Thermostat to the flashing patterns listed on the furnace AA or AAA ID found at the end.

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