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International Comfort Products C9MPD100J20A1 Furnace Door Switch
A furnace door switch is a switch that prevents the draft inducer and ignitor from switching on in order to prevent injury and fire. You should have the switch be switched out as soon as you can especially if you suspect it is not working properly.
Some warnings your safety switch on the furnace door needs replacing ASAP
- The switch looks stuck
- The whole system does not turn on with the door closed
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