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International Comfort Products T8MPN125J20A1 Furnace Door Switch
The furnace door switch blocks initial fan and other risky devices from turning on so as to stop a potential explosion. It is imperative that the switch be switched out as soon as you can if you suspect that it is not working.
What warnings should I watch out for to know if my furnace door switch is on its last leg?
- The safety door switch looks like it is removed
- The whole system will not fire up whether the door is off or on
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