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International Comfort Products FBF100F14A3 Furnace Door Switch
A furnace door switch is a switch that inhibits initial fan and ignition sequence from activating so as to avoid injuries. It is important to get the part switched out as soon as possible if you find it to be faulty.
Important red flags of a poorly working switch on the furnace door
- The safety door switch appears to be stuck
- The furnace will not begin whether the door is open or closed
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