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Carrier 48XPN036060300 Furnace Door Switch
A furnace door switch is a switch that inhibits initial fan and gas ignition being triggered to start so as to avoid injuries. Do not try to fix it, just have it traded for new one at once especially if you think it is defective.
Clues your safety switch on the furnace door should need replacing
- The switch looks as if it has been chipped
- The HVAC system will not engage even with the door closed
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