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Carrier 25HNA936A0030030 Furnace Door Switch
The job of the furnace door switch blocks the blower and ignitor from activating so as to avoid injuries. Do not waste time and have it changed at once if it is damaged so as to prevent something bad happening.
Some clues the switch on your furnace door has little life left
- The whole system will not start whether the door is off or on
- The switch seems to be broken completely
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