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International Comfort Products H8MPL125J20A1 Furnace Door Switch
The furnace door switch inhibits initial fan and ignitor from switching on in order to prevent injury and fire. It is imperative that the switch be switched out immediately if you can, if it is causing you problems.
Major symptoms the switch on your furnace door has little life left
- The door switch looks like it is worn down
- The whole system will not run with the door closed
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