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Carrier 58MXB120F10120 Furnace Door Switch
The furnace door switch is a safety switch which prevents the vent fan and ignitor being triggered to start in order to prevent injury and fire. You should really have it switched out as soon as you can if it is causing you problems.
What are some indications that my switch on the furnace door is in need of replacing?
- The system will not operate even when you close the door
- The furnace door switch seems to be fallen off
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