. . . . . 0000004959 00000 n . Vent pipes must be free of blockage. Thermostats are devices that control the temperature of the furnace. BillyHvac, Journeyman HVAC Tech. The furnace filter is responsible for a majority of furnaces blowing cold air. . 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 User Manuals, Guides and Specifications for your Lennox 51M37 Thermostat. . Thermal-mechanical switch opens W1, Y1, Y2, and E at. . . . Make sure to turn off the circuit breaker switch corresponding to the furnace. . The main breakers have been Reset and it still isn't coming on. . What is involved in humidifier installation and maintenance? . . Category: HVAC. . . Set the thermostat to heat mode to control the heating equipment. . It's also easy to find an expert Lennox dealer who can help you make the most of your HVAC system. . 0000029601 00000 n . CMav@* . . . . Find a nearby store using a city or zip/postal code above. . . This indicates that the equipment requires service from a qualified service technician. . . . The 51M37 is suitable for heat pump, 3-stage heat/2-stage cool applications using a gas or electric auxiliary heat source. . . The backup heat source is activated for at least 3 minutes if no buttons are pressed during the demand interval. To return to the program, press HOLD again. . . . To adjust the balance point up or down, press the Up/Down arrow buttons to the right of the display screen. . This indicates that the cooling demand has been satisfied and that the cooling equipment has been turned off. Your Location: Find a Dealer . The remaining 2 days can then be set for a different set of 4 unique events per day. . . . There are several actions that could trigger this block including submitting a certain word or phrase, a SQL command or malformed data. . . Replace these to see if they work correctly. Non-programmable model available for ease of use in basic applications. . . Not a member? While in Temporary Hold, press HOLD once to switch to. . . . . . . . How does excessive humidity affect my home comfort and health? . . . 0000063496 00000 n Then, if the room temperature is higher than the temperature setpoint, as shown in figure 11, the thermostat detects a cooling demand and will activate the cooling equipment to satisfy the demand. . . Please call or email us with your request. It's easy to find an expert Lennox Dealer who can help you make the most of your HVAC system. 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. . . . . With a large HEAT demand, temperature is: less than setpoint 1.5F. . . The minimum flame sense current is 0.5 microAmps. 7, Service Indicator . . . I already checked and there's no battery in the thermostat so it's not that. AND 30-minute upstage timer HAS NOT expired. . . . Use the UP/DOWN arrow button to display the minutes past the hour. My Dealer . . If the thermostat is in HEAT or OFF mode, cool mode is enabled when the COOL button is pressed. . . . Exclusive HVAC eTools Set the thermostat to cool mode to control the cooling equipment. . . . 51M37 Manuals Use the Up/Down arrow buttons to display the minutes past the hour. Sign in for pricing and availability. . . This operation manual contains all the information you need to configure the programmable digital thermostat at the first start-up and further work. . . . Such an instance can occur as a result of a power surge or similar electrical disturbance (e.g. What are some of the health effects of carbon monoxide? . What is the best thermostat to use for my heating system? Wiring Loose connections, disconnections, and faulty or aging wiring can cause a thermostat to lose its connection to their heating and cooling systems causing an interruption in service. If removing the thermostat from the wall, use caution and avoid touching any of the connector terminals on the wall bracket. 0000004031 00000 n . . . . The balance point can be set at any temperature between. . . Press the PROG button when finished. Press DAY/TIME. . . Adjusting Temperature Setpoint in Hold Mode. . . 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. . . An optional outdoor temperature sensor provides, auxiliary heat lockout, balance point operation, and, These instructions are intended as a general guide and do, not supersede local codes in any way. . . . 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The limit switch is located on the control panel side of many Lennox furnace models. . . . . if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[320,100],'climesense_com-box-4','ezslot_6',112,'0','0'])};__ez_fad_position('div-gpt-ad-climesense_com-box-4-0');When the thermostat demands warmth, the inducer motor comes on to guarantee there are no restrictions on exhaust and intake vents. . This oc-. . 0000023968 00000 n This document describes the operation of Lennox thermostat. . 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. . . . NOTE Tables 2 and 3 on page 6 show all system and programming defaults. . . 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. . . . . . . . 1F and 55F (17C to 13C). . Setting range: 50F (10C) to 90F (32C) Setting resolution: 1F (1C), Smart Setback Recovery (via DIP switch #6). . . . AM 6:00", period A", and the 5 consecutive days are displayed; AM 6" flashes. There is no setting or field repair for this. . . . Set the thermostat to cool mode to control the cooling equipment. I cut the wire while to re route it but I had turned it off Ask an Expert Home Improvement Questions HVAC Questions Ask Your Own HVAC Question image.jpg image.jpg image.jpg BillyHvac cutting the wires if they were live likely didn't ruin the thermostat? . . . . . . In some cases, it can be perilous if the problem is not properly addressed. . . . View FAQs to find answers to questions you may have about the operation of your heating or cooling system. . . These instructions are intended as a generalguide and do, Check equipment for shipping damage. . . Press DAY/TIME. . if the thermostat Y1 terminal has been activated with 24VAC for at least 5 minutes, AND the L terminal is shorted to the C terminal. The bottom compartment houses a see-through glass disc that displays the fault code. Press the UP/DOWN arrows to change the hour. The 51M37 thermostat can be programmed to perform a set of either heating or cooling events (but not a combination of heat and cool) for 5 consecutive days using a set of 4 unique events per day. Lennox Furnace Troubleshooting: The Definitive Guide, https://www.airtronic.ca/lennox-furnace-troubleshooting/. The following notes described terms used in the table. A pediatrician suggested a tabletop humidifier for my babys room. 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. . . . . . Model/Part # :ECBA25-10CB. . This overrides the program for 2 hours from the last button press, then returns to the program. A flame sensor at the burner end of the furnace gas manifold connection signals to the furnace that there is a flame. The system check indicator will notify the user of the need for equipment service. . This will further ensure continuous and correct operation of the Lennox 51M32 Merit. 2, HEAT Heat Mode . . If you are unsure how to recognize the switch, refer to your users manual. This is normally controlled by applying 120V AC power to it from the air handler. . . Do not use this item for any installation or repair of potable water applications. . . If it is not, you may need to relight it. There are no new entries! 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. . . . . 7, Removing/Installing Thermostat . . 0000023413 00000 n . . . . 0000065723 00000 n 24VAC is present on the terminals of the thermostat bracket. . Exclusive promotions . . Access all owners assistance resources here. With simple one-touch operation and precision temperature control, ComfortSense 3000 Series Programmable & Non-Programmable Thermostats are incredibly convenient. . . . The default balance point setting is 55F. 0000004694 00000 n Power must be applied for at least six consecutive hours prior to a power loss in order for memory to be retained for the specified time. The backup heat source is activated only when there is a heat demand. . 0000023032 00000 n . . . . . . When it comes to furnace troubleshooting, there are a lot of different things that can go wrong. 0000024214 00000 n . When the RESET button is pressed, ALL settings revert back to the defaults, including the default program (see tables 2 and 3). . . . . . . . . . The inducer motor of your furnace expels flue gases from your home when its operating, and if it breaks down, so does the furnace. . . 1, Buttons, Backlight, Timers & Settings . . Then, turn the furnace switch back on. . 5, PROG Thermostat Programming . . . . . Order toll free: 800.884.5500 Order international: +1 609.288.9393 Are you in EU? . . . As long as its too hot, its burnt. . Sign in with the same credentials. . . . . Display Scale: Fahrenheit or Celsius user selectable (via. Emergency heat demand (only if emergency heat is enabled): temperature is below setpoint 0.5F. 0000008239 00000 n Electronic programmable thermostat for 2Stage (gas or electric) Heat/2-Stage Cool, nonheat pump, nonpower robbing applications. . . Day MO" (Monday) will flash. . . Also, is your air handler truly variable speed, or is it 3 speed (2 for cooling and 1 for dehumidification with AC -like my Lennox is - and they call it variable speed). 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. When power is initially applied to the thermostat, the dis-. . . NOTE Pressing ENTER during the following programming steps, saves and exits to the HOME screen. 6, Technical Specifications . . . . 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. . . Consult authorities, Check equipment for shipping damage. . Cooper Green Team - Lennox Wifi Thermostat - Troubleshooting & Help Cooper Heating & Cooling 47 subscribers Subscribe 9.8K views 4 years ago Cameron from the Cooper Green Team is going to show. . 10. . . . 0000006156 00000 n 0000020247 00000 n . . . Consult authorities having jurisdiction before installation. Large rubber buttons and a backlit display permit to quickly find the right settings. . . damage, immediately contact the last carrier. Lennox furnaces are the most reliable and efficient on the market. Not a member? . . . . Smart Setback Recovery (SSR) affects the way the thermostat responds to program events. . . . . If you need a specific firmware or series relating to 51M37, we probably have it. . . . . . . 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 Your Location: Find a Dealer. . . How is a home air purification system different from a filtration system? Please check other cities zip/postal codes for same-day availability. . . . . . Use the Up/Down arrow buttons to select the desired hour; press PROG when the desired hour is reached. . . . Electronic programmable thermostat for heat pump. Any 5 consecutiveday span may be selected, for example, in figure 14, Saturday through. . 3.Day MO" (Monday) will flash. . Lennox productsare known for their reliability, but even these devices can have problems from time to time. garding installation and wiring of the thermostat. There are 2 near you. . Start making changes within. . . . . . 4, HOLD Temperature Hold Mode . . . Minutes will flash. . . 1.AM12" will flash on the screen. Find a nearby store using a city or zip/postal code above. This prevents excessive cycling of the equipment when the outdoor temperature is near the balance point. . . Refer to the installation manual for instructions regarding installation and wiring of the thermostat. . . . . 2, DAY/TIME Set Day and Time . (figure shows temperature in Fahrenheit units). . . . 4. . 0000044287 00000 n . How do I know which indoor air quality product is right for me? Can I use my chimney with my new furnace. . . . . The screen will blink for a few moments to indicate that the timer has been reset. . What do all those air conditioner and heat pump ratings mean? Furnaces often have short cycles because of flame sensor failure as well. Within a, few seconds, the display will appear as shown in figure 2. After a demand has been satisfied, cooling equipment operation is locked out for 5 minutes. . . When abnormal equipment operation is detected, the SERVICE indicator will flash on the screen (see figure 21). . Please include what you were doing when this page came up and the Cloudflare Ray ID found at the bottom of this page. . . . . . . . . An optional outdoor temperature sensor provides auxiliary heat lockout, balance point operation, and dualfuel compatibility. . Press the Up/Down arrows buttons to change the hour. . . . See page 8. 0000001516 00000 n . Add to Cart. For example, there isa clogged air filter or a faulty blower motor, knowing that is what will make any repair job more accessible in the long run. 0000016120 00000 n . . . It includes a programmable filter change reminder, an Can indoor air humidity affect asthma and other respiratory ailments? Check for a power outage, furnace filter, or furnace blower. 3, COOL Cool Mode . . . . . . . . How does overly dry air affect my home comfort and health? . . Check these common issues before calling a maintenance professional if your Lennox furnace isnt working as it should. 7, Thermostat RESET . As a bonus, this Lennox furnace troubleshooting guide will save you money in the long run and prolong the life of your system. 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. . . Under some abnormal conditions, it may be necessary toreset" the thermostat to its default condition. damage, immediately contact the last carrier. . 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. . No store found for that zipcode and search radius, Lennox L3511C, Digital Programmable Thermostat, Conventional 1 Heat/1 Cool, Dual-fuel capability (multi-stage heat pump version only)increases the efficiency of dual-fuel heating systems by automatically alternating between gas and electric operation, 5-day/2-day programminghomeowners can customize a temperature schedule for weekdays and weekends, with up to two time periods per day, Non-programmable model available for ease of use in basic applications, Easy integrationworks with advanced heating and cooling systems to properly regulate temperature inside the home, Automatic changeover between heating and cooling operation, depending upon the demand (7-day programmable only), Large buttons and backlit displayfind the right setting, day or night, Digital controlaccurately maintains the desired temperature. . . . . . . . . . . . After 24 hours of power loss, programmed settings will be lost and replaced with default settings. To alter the 5 consecutive days, press and hold the PROG button for 5 seconds. . . . What is the difference between an ARI and AHRI? . . . 2.Use the Up/Down arrow buttons to select the desired hour; press PROG when the desired hour is reached. . . . 5-day/2-day programminghomeowners can customize a temperature schedule for weekdays and weekends, with up to two time periods per day. Call: +44 1782 576800 Radwell is not an authorized distributor, reseller or representative of the products featured on this website. How to Know the Heater Wattage: A Guide for Homeowners. . . . Can Equipment Be Registered After 60 Days from Either the Installation Date or Closing Date In The Case Of A Newly Constructed Home? . . . . 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. . . . Displayed temperature is the average of the last four measurements. Use Up/Down arrow buttons to display the current day. . . ( AM" or PM" must correspond to time of day.) . This indicates that the equipment requires service from a qualified service technician. . . . . . . Upload manuals that we do not have and get. All thermostat relays are latching type to minimize power consumption. . 4.The HOME screen reappears; confirm day and time are correct. Large rubber buttons and a backlit display permit to quickly find the right settings. . 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. . 15 seconds or the HOME screen will return. . The new LennoxPROs e-Business System makes your job easier, faster and more profitable. How do I register my product? . . . . . . Press Up/Down arrow buttons to select the desired reminder intervals. Figure 12 gives an example of how the two sets of programs can be set for a normal workweek and weekend. . If the thermostat is in HEAT or OFF mode, cool mode is enabled when the COOL button is pressed. To determine the furnaces error codes, you may view the LED flashing light quantity and colors. . . . 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. . Can strong odors in my house cause health problems? . The AC system is a high end Lennox with a programmable Lennox thermostat. . . . Use the Up/Down arrow buttons to adjust the hold setpoint. . . . . . Settings of Off, 6 or 12 (months of chronological time) are available. . . 0000003631 00000 n NOTE Heating equipment is activated for at least 3 minutes if no buttons are pressed during the demand interval. . . . . . Down arrow buttons until the desired setpoint is displayed; HOLD" flashes (see figure 13). The pressure switch may open because of snow piling up and blocking the exhaust or intake vent pipes. I apologize but the only fix would be to replace the thermostat. See page 7. Note whether a fan icon in the. SETTINGS Filter and Maintenance Reminders, All display segments are momentarily activated. . . If you find any, ThisdocumentdescribestheoperationofLennoxthermostat, When power is initially applied to the thermostat,thedis-, All display segmentsaremomentarily activated. . Such an instance can occur as a result of a power surge or similar electrical disturbance (e.g. . . 0000020076 00000 n . . . What steps can I take to get rid of chemicals? . At this point, the thermostat will be fully functional; its default temperature setpoint (not shown) is 70F. . The balance point setting increases by 1F each time the Up button is pressed and decreases by 1F each time the Down button is pressed. . This means that the temperature program data is ignored and the thermostat functions much like a nonprogrammable thermostat. . Sorry. . Press DAY/TIME. If the fan setting is ON, the G output is activated in all cases. 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. . . . . . . . . . Default thermostat settings are in table 2 and the default program is shown in table 3. Thermostat memory is retained for a minimum of 24 hours during a power loss (includes retention of program information, HOLD status, programmed temperature setpoint, heat/cool and fan mode settings, filter reminder status, maintenance reminder status, and equipment protection timers). At any time the program is running, from the HOME screen, set a permanent hold (program override) by pressing the HOLD button (see figure 9). . Press the PROG button when finished. . garding installation and wiring of the thermostat. Use the FAN button to select either continuous fan mode or auto fan mode. If the thermostat is in emergency heat mode when the HEAT button is pressed, then heat modes are disabled. . . . . . It will reset the breaker. . . . . . In emergency heat mode, only the backup heat source provides heat the heat pump is disabled. . When your furnace blinks red repeatedly, you know something is wrong. . . . . . . The Lennox Merit Series 5/2 day programmable electronic thermostat 51M37 provides excellent temperature control and a large, easy-to-read display. . . . 747 61 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. How can I tell if I have a ventilation problem? . What is the best indoor air quality product? . . . What Lennox products are eligible for this 10-Year Extended Limited Warranty Program? . This is indicated by HEAT in the SYSTEM box as shown in figure 4. 5/2 day programmable thermostat (8 pages), Color touchscreen programmable thermostat (20 pages), Commercial touchscreen thermostat (30 pages), Color touchscreen programmable wi-fi Be careful when touching the motor, as it can become overheated and burn your fingers. The thermostat also includes a programmable filter change reminder and a system check indicator. . . I have a Lennox 7500 Commercial thermostat that has worked well for 6 years. service. The default setting for the reminders is OFF (disabled). .and more! . . . 0000005889 00000 n Sampling Method: temperature measurements sampled every 15 seconds. . When abnormal equipment operation is detected, the SERVICE indicator will flash on the screen (see figure 17). I have a 51M37 Lennox thermostat and the display is blank/dark. . Minimum furnace cycle time (elapsed time between any furnace activation and the next furnace activation): 6 minutes. Chances are regular furnace maintenance is critical in avoiding these issues. Why is carbon monoxide (CO) in the home dangerous? This is normal and will no longer occur after the electrical disturbance has passed. SETPOINT and the temperature setting appears for 15 seconds. . . . The action you just performed triggered the security solution. . A pale blue display backlight illuminates for 30 seconds each time any button is pressed. . . . . . Press the Heat button to enable or disable HEAT mode. . . . . . . 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 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. Cooling operation is indicated by flashing snowflake" icons in the SYSTEM box. Whose claim do I believe? . . . In this way, you can stop this problem from occurring. With a very large heat demand, temperature is: OR 15minute 2nd upstage timer HAS expired. . . The remaining 2 days can then be set for a different set of 4 unique events per day. . Settings of Off, 1, 3, 6 or 12 (months of fan run time) are available. . When programmed time has elapsed, a FILTER indicator is displayed. . . . Day selections are abbreviated as MO , TU", WE", TH", FR", SA", and SU". . . . . 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). . The Truth About 2 Zone HVAC Systems: Which Is Right For You? 0000027124 00000 n . The thermostat now functions much like a nonprogrammable thermostat. . Heating operation is indicated by a flame icon in the SYSTEM box. Refer to the installation manual for instructions re-. . . . When the actual temperature drops below the temperature setpoint, the snowflake icons will disappear. . . Both the consecutive days and the events/temperature are set by the homeowner. This document describes the operation of Lennox thermostat, 51M37. Within a few seconds, the Home Screen appears (see figure 2) with default settings as shown. . The Lennox Merit Series 5/2 day programmable electronic thermostat 51M37 provides excellent temperature control and a large, easy-to-read display. . 0000007136 00000 n This occurs as a normal part of thermostat initialization. . . . . How do the PureAir and PureAir S air purification systems work? When the actual temperature rises above the temperature setpoint, the flame icon will disappear. after an electrical storm or power outage). Default thermostat settings are shown in table 2 and the default program is shown in table 3. . . . Locate the inducer motor on the top box of the furnace. . . . 1, General . 3.Use the Up/Down arrow buttons to select the desired minute; press PROG. . . . . xref In the 5day bar graph, note how programs A and C reflect the desired warmth while the home IS occupied (72); B allows less heating while the home is NOT occupied; D reflects a cooler sleeping temperature. Without it, the furnace would not know whether a flame was present. . . . . . If the thermostat is in cool mode, pressing the Cool button disables COOL mode (indicated by OFF in the SYSTEM box see figure 5). . . . . . . If continuous fan mode is enabled (ON displayed in FAN box see figure 13), the fan will run continuously regardless of whether the heating or cooling equipment is running. garding installation and wiring of the thermostat. 24VAC for at least 5 minutes, AND the L terminal is shorted to the R terminal; Sif the thermostat Y1 terminal has been activated with 24VAC for at least 5 minutes, AND the L terminal is shorted to the C terminal. . . . Click to reveal Lennox Residential has all the answers to your home heating and cooling, SunSource solar energy system, air conditioner and furnace questions. . . Press DAY/TIME. . . . . . Day selections are abbreviated as MO , TU", WE", TH", FR", SA", and SU". , press HOLD once to switch to mode, cool mode is enabled when the actual rises... Performed triggered the security solution Lennox Merit Series 5/2 day programmable electronic thermostat 51M37 provides excellent temperature control, 3000... 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