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International Comfort Products T9MPD100J20A1 Furnace Door Switch
A furnace door switch is a switch that inhibits the fan and ignition sequence from activating in order to prevent injury and fire. Do not waste time and have it switched out immediately if you can, if it is defective in some way or another.
Key signs of a declining safety furnace door switch
- The safety door switch looks bent badly
- The HVAC system will not begin even when you close the door
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