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International Comfort Products CAC424AKA1 Furnace Door Switch
The job of the furnace door switch blocks the vent fan and ignition sequence from starting so as to stop a potential explosion. It is imperative that the switch be replaced as soon as you can if you suspect that it is not working.
Hints the safety door switch is not going to last much longer
- The system does not begin to work even when you close the door
- The door switch looks like it is wrong
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