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International Comfort Products H9MPD075F12C1 Furnace Door Switch
The job of the furnace door switch prevents the fan and ignitor from starting in order to prevent injury and fire. It is extremely important that the device is substituted for a new part ASAP especially if you think it is defective.
What happens when my safety door switch is dying?
- The whole system will not start even when you close the door
- The furnace door switch looks as if it has been breaking off
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