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Carrier 40MFC018 Furnace Door Switch
A furnace door switch is a switch that stops initial fan and gas ignition from activating in order to prevent injury and fire. It is extremely important that the device is changed ASAP if you find it to be faulty.
Key clues of an unhealthy safety switch on the furnace door
- The furnace will not engage even when you close the door
- The door mechanism looks as if it has been not there
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If you decide on picking up or purchasing do your best and double check the correct model and also make a visual comparison so that you are positive that the correct replacement furnace door switch is being ordered. HVAC pros may charge higher prices than others so you may want to keep a lookout locally to acquire the best rate if money is a concern.
Feel free to download your manual for help.
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