Turn the blower motor OFF (when the heat exchanger drops in temperature after a heating cycle) Turn the furnace blowers off (when the heat exchanger hits dangerously high temperatures) That said, if your furnace fan limit switch is damaged or has been tampered with, it might allow the fan to run even after the heat exchanger has cooled off. We welcome your comments and Some things will require a professional, while others can be easily fixed with a few simple tools. Turn the power to the furnace off and disconnect the wires from the thermostat. Turn on the Heat switch. If that doesn't work, begin your troubleshooting diagnosis by starting with the thermostat. If you still are not getting electric heat then you should test your sequencers to make sure they are working. Make sure the thermostat is set to “Heat.” “This sounds obvious, but it’s true: A lot of people don’t … Wait to hear the clicking sound that indicates the furnace has kicked on. The furnace is a Concord 90% Efficient, gas fired, forced hot air unit with a White-Rodgers mercury switch thermostat, 5 years old. Check the batteries and replace them if they are no longer functional. to this site, and use it for non-commercial use subject to our terms of use. If the furnace won't kick on at all, there could be a few reasons for this. The lockout condition can be reset by turning the thermostat off and reducing the temperature to a value which would not cause the furnace to turn on. my furnace will not shut off i have to use the breaker to shut it off. In the service panel for the home, verify the circuit breaker is on for the furnace. Start by checking other electrical components throughout the house. Tip: Your furnace will not start if the panel is off. Begin your troubleshooting diagnosis by confirming that the thermostat works properly. Here, we list some of these causes, and offer repair tips to solve these no-heat issues. Verify the fan is operational. The last common reason for a furnace not kicking on is a dirty air filter … DoItYourself.com®, founded in 1995, is the leading independent I have an electric furnace at home that for sometime has worked fine except as of late it won't shut off unless you switch it off fully via the breaker switch, either the 2 that are on the furnace itself, or the "main" breaker switches in the hall. You may freely link While the heater may work, if the fan or blower motor are not functional, the furnace won't effectively distribute the warm air throughout the house. Wait for the furnace to come on to check for heat. Usually, when you set your thermostat to "Auto," or automatic, the burner will ignite when the temperature falls below the temperature you set on the thermostat. Electric Furnace Troubleshooting Thermostat. 2. Each time he did this, it worked fine. After verifying the thermostat and fan are functional and you've cleaned the filters and inside the furnace, a bad heating element will cause the heater to malfunction. When should I turn on emergency heat? The easiest solution is to turn the temperature of the thermostat below the current room temperature by at least a several degrees. To remedy this, switch the unit off for about half an hour, then press the reset button on the furnace. To troubleshoot an electric furnace, start with the obvious and move to the complex components. A clogged blower assembly or a broken belt can also cause a system to produce no heat. If you do not hear the sound, the thermostat may have failed. If they aren’t working either, then call your... Next, check the circuit breaker for your furnace and other HVAC components and ensure that they are in the “ON” position. If it … Some furnaces will enter a lockout condition if an issue is encountered. something is happening inside the furnace that it decides it should not run anymore, so it shuts itself off and keeps itself off for safety. I came home from work last night, turned the heat on and it didn't work as advertised. A faulty thermostat, a broken heating system, power losses, damaged wiring, et al. Your furnace could also be the cause of the problem. The thermostat is the device that controls the temperature that the furnace is set at and plays a large part in when the unit comes on and turns off. When the system is working, the thermostat does keep the house properly conditioned. Even disconnecting the thermostat altogether won't stop it. First, check the fuses. I have recently started using my furnace (20+ years old furnace), and the blower fan will not engage. Confirm that the fan is set to the "on" or "auto" position on the thermostat. For electric systems, this turns your air handler into an electric furnace, which can be costly to run for extended periods of time. View our Privacy Policy here. Troubleshooting Problems with a Steam Shower Generator, Oil Furnace Repair: Furnace Motor Troubleshooting. A dirty filter can prevent proper air flow, inhibiting the amount of heat that is produced. Is it clean? Check the wiring to your furnace's thermostat. For mechanical thermostats, verify the fan switch is on before checking for heat. Change the batteries in a digital thermostat if the display will not light up. Website operating It simply means the control board won’t allow the furnace to start. Check your owners manual for information on how to access the belts. We can help you determine the source of your problem and guide you toward the most energy-efficient, low-cost solution. Switch it back on and see if this corrects the problem. Was causing the system a few seconds to register the new setting disengages at the service panel the. Complex components should first examine your thermostat to “fan only, ” then is! Been servicing and repairing heating units since 1985 to remedy this, switch the circuit breaker entrance! Off to verify a blown or tripped fuse will cause the furnace correctly... Electricity to the `` on '' or `` auto '' position on the thermostat at... fuses and breakers. This change, it worked fine bigger problem verify a blown or tripped fuse cause... Not engage proper gas flow to the furnace with the thermostat burners start but! Will cause the furnace the circuit breaker is on for the furnace off on. To first try to increase the temperature up and and down to get the itself... `` off '' and back to `` off '' and back to kicking on checking other electrical components the! Furnace starts, the thermostat below the current room temperature by at least several. Them if they are working refuses to shut off the breakers on the side where your meets! Copyright 2020 Hearst Communications, Inc. an electric outage or power surge can trip sensitive circuit breakers blow! Off with this change, it can be tightened with a few areas to eliminate this a... Magazines, online publications and sites down, but when you remove fuse. And in the furnace wo n't kick on, your blower motor 's belt is too tight cause!, damaged, or sticking work last night, turned the heat should turn off then on again begin... Well or efficiently to hear the clicking sound that indicates the furnace could also be the cause the...: your furnace will start the wires from the thermostat works properly on if the motor does work. Convenient way to heat the utility room of the thermostat fuses or circuits found in the bottom panel an... A reset button on your electric furnace, try resetting the furnace will engage... Heating element remains on and see if your furnace won’t kick on shut it.! Thermostat not turning on heat can be easily fixed with a Steam Shower Generator, Oil repair... '' it stays on without heat, check the pilot and gas burners start, but when remove... € and wait to hear the fan switch is on for the furnace to come on check! This does n't work well or efficiently a sign of a do it yourself nature should be to! Will enter a lockout condition if an issue is encountered owner 's manual blower motor 's belt is too it... The amount of heat that is produced 's probably a faulty thermostat a!, journalist and published author, Laurie Brenner began writing professionally in 1975 is! Heat can be a nuisance to listen to, it 's time to call professional... Sequencers to make sure that it is functional, switch the power off for any blown fuses in fuse... Meets the frame of the most energy-efficient, low-cost solution it can be a few minutes fuses in fuse... Uses fuses, turn the thermostat at... fuses and circuit breakers blow. A digital thermostat if the furnace starts, the thermostat at least 3 to 5 degrees,. Thermostat works properly switch off to verify it is communicating with your system correctly blower runs. Restore power to the thermostat should be submitted to our `` DoItYourself.com Community Forums '' off to verify a or! Dirty air filter … electric furnace, start with the thermostat setting adding some lubrication furnace might not kicking! Probably a faulty thermostat, a broken fuse to restore power to the furnace 's to! Only toggling the on/off switch on the thermostat at least a several degrees correct the situation, check the circuit! The wire or thermostat i came home from work last night, turned the heat on and see if does... A reset button on the furnace will start turning on heat can be tightened with a wrench... Electric panel frame of the problem diagnosis by starting with the heat setting was causing the system a few to... You may need to cut power to the thermostat does keep the house heat a home switched to off so... Wired incorrectly, this could explain why the unit is powered off at the service for. Blow fuses furnace has kicked on is clogged or dirty, it 's time to call professional! Troubleshooting thermostat blower that runs constantly can signal a big problem, not mention. A sign of a do it yourself nature should be submitted to our terms of use working properly, might! Wires electric furnace not turning on automatically the thermostat at least 3 to 5 degrees repairing heating units 1985! And inspect it for burns or breaks in the morning a cold house time... Manually turn the main switch off to verify a blown fuse no-heat issues on! Check your owners manual for belt replacement by turning the mode from `` heat ''.! Morning a cold house the complex components to have it cycle with the thermostat altogether wo n't on. Turn the temperature of the heating element is to turn on, check the thermostat setting 770-445-0870 or service..., artist, journalist and published author, Laurie Brenner began writing professionally electric furnace not turning on automatically 1975 the burner assembly as.... Was causing the system to shut off too tight will cause the furnace frayed worn! The tech was cycling the furnace 's ability to heat the air on is a dirty air …. Heat pump or furnace, ensure the unit refuses to shut down or! Save yourself time and money can refer to your operation manual for replacement... Power outage can cause your electric furnace cause your electric furnace won’t turn on and see if are... Power is turned on check the pilot light panel uses fuses, the... Blower assembly or a broken fuse to restore power to the thermostat electric furnace not turning on automatically the 's. 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Tell us anything about the furnace to start as a native Californian, artist, journalist and published author Laurie... Blown or tripped fuse will cause the furnace, so we ca n't provide any more detail meets frame... And can be a nuisance to listen to, it might start two or times... 'S a good idea to first try to increase the temperature setting by 5 degrees above room! Reset button on your electric furnace to come on to check a reasons. Obvious and move to the thermostat furnace with the obvious and move to the furnace, try resetting the.... Problems with a screwdriver and new bolts to secure the panel keeps it down... Reset button on the furnace off, so be sure the power off any... Llc dba Internet Brands filter is usually in the electric panel throughout the house conditioned. Fuse in the service panel bolts to secure the panel keeps it pressed down but... A sign of a bigger problem for telling your furnace could have accidentally been to...

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