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International Comfort Products H9MPV125L20A1 Furnace Door Switch
The furnace door switch is a safety switch which stops the blower and gas ignition from turning on in order to prevent injury and fire. It is crucial to have this part exchanged for a new one quickly if it is causing you problems.
Hints your furnace door switch has very little life left
- The door mechanism looks like it is chipped
- The system will not start whether the door is off or on
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