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International Comfort Products TCA236AKA1 Furnace Door Switch
The furnace door switch is a safety switch which stops initial fan and ignition sequence from switching on so as to avoid injuries. Do not waste time and have it substituted for a new part as quick as you can especially if you suspect it is not working properly.
Hints of an unhealthy switch on the furnace door
- The HVAC system will not operate with the door closed
- The switch looks not there
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