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Payne PH1ZNA030000AAAA Furnace Door Switch
The job of the furnace door switch inhibits the blower and gas ignition from starting so as to stop a potential explosion. It is imperative that the switch be switched out at once if it is causing you problems.
Key indicators that my safety door switch is almost dead?
- The HVAC system does not begin to work whether the door is off or on
- The furnace door switch looks fallen off
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