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Haier HR24D2VAR Furnace Door Switch
The job of the furnace door switch inhibits the draft inducer and ignition sequence being triggered to start in order to prevent injury and fire. You should have the switch be swapped out promptly if it is defective.
Indications of a faulty safety door switch
- The whole system does not fire up whether the door is open or closed
- The safety door switch appears to be breaking off
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