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Carrier 38YSA042 Furnace Door Switch
The furnace door switch inhibits the draft inducer and gas ignition from turning on in order to prevent injury and fire. It is important to get the part changed ASAP if you see that it is broken.
Signals the safety door switch will eventually need to be replaced
- The HVAC system does not fire up even with the door closed
- The door mechanism appears as though it has been breaking apart
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Before buying or ordering do your best and double check the correct model as well as make a visual comparison in order to be sure the correct replacement furnace door switch is being ordered. Installation of the furnace door switch is a piece of cake provided you possess the knowledge and have the proper tools to do it right.
Feel free to download your manual for help.
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