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International Comfort Products HPFM48K000A Furnace Door Switch
A furnace door switch is a safety feature that blocks the vent fan and ignitor from turning on so as to avoid injuries. Do not try to fix it, just have it substituted for a new part ASAP if you find it to be faulty.
What are some indications that my furnace door switch is dying?
- The furnace will not start whether the door is open or closed
- The furnace door switch is not there
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