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International Comfort Products PGS048L120F Furnace Door Switch
The furnace door switch is a safety switch which inhibits initial fan and ignitor from turning on so as to stop a potential explosion. Do not waste time and have it traded for new one swiftly if it is defective in some way or another.
Major warnings of a bad switch on the furnace door
- The furnace does not run whether the door is off or on
- The door mechanism seems to be worn
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