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International Comfort Products PGMD42G1154 Furnace Door Switch
The job of the furnace door switch inhibits the blower and other risky devices from starting so as to avoid injuries. Do not try to fix it, just have it switched out as soon as you can especially if you suspect it is not working properly.
Indications of a weak safety switch on the furnace door
- The door switch seems wrong
- The whole system does not begin to work with the door closed
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