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International Comfort Products C8MPL125J20B1 Furnace Door Switch
A furnace door switch is a safety feature that inhibits the fan and ignitor being triggered to start so as to stop a potential explosion. You must have the device replaced as quick as you can especially if you think it is defective.
Chief elements of an unhealthy furnace door switch
- The safety door switch seems not there
- The HVAC system will not operate whether the door is off or on
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