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Carrier 38YXA030 Furnace Door Switch
A furnace door switch is a safety feature that prevents the fan and gas ignition from activating so as to stop a potential explosion. It is quite important to have it swapped out at once if it is defective.
Elements of an ineffective furnace door switch
- The HVAC system does not operate whether the door is open or closed
- The furnace door switch seems breaking off
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