What would cause a furnace not to kick on?
Thermostat. If your furnace is not kicking on, it can be an issue with the thermostat. You should first make sure that the thermostat is switched to the heating function. You may also have an internal problem with your thermostat, which needs to be repaired by a professional.
Why is my thermostat not turning my furnace on?
Loose connections, frayed wires, and aged wires all can cause your thermostat to eventually lose its connection to your A/C and heating system. Inspect your wiring thoroughly, making sure the connections are tight, and replace any wires as deemed necessary by you or an HVAC professional.
How do I get my furnace to kick on?
You can try to get the furnace to turn on by setting the thermostat to as high as it will go. Make sure the furnace is on. There will be a power disconnect switch next to the furnace. Yes, even gas furnaces use electricity.
Where is the reset button on a furnace?
All furnaces are equipped with a reset button. They are generally red or yellow and are located inside the blower compartment. The reset button is a safety feature that will shut down the furnace when a problem is detected, often a hot or overheating furnace, before it trips the circuit breaker.
Can a bad thermostat cause furnace not to work?
Malfunctioning thermostat: A faulty thermostat can lead to problems with the fan or comfort levels. The furnace doesn’t heat at all: A furnace that doesn’t perform its main task may have problems with the thermostat setting, power, gas or the pilot light.
What problems can a bad thermostat cause?
There are several common symptoms associated with a bad or failing thermostat that will alert you that service is due.
- Temperature gauge reading very high and engine overheating.
- Temperature changing erratically.
- Coolant leaks around the thermostat housing or under the vehicle.
How do you unclog a thermostat?
Removal and Testing
- Disconnect the negative battery cable.
- Drain some of the coolant (a gallon should be enough) so the fluid won’t pour out when you perform the next step.
- Remove the upper radiator hose.
- Remove the thermostat housing.
- Remove the thermostat.