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Lennox CB30M-46 Furnace Door Switch
The furnace door switch stops initial fan and ignitor from activating so as to avoid injuries. It is imperative that the switch be substituted for a new part as soon as possible if you see that it is broken.
Important hints your safety switch on the furnace door will not live much longer
- The switch looks as if it has been wrong
- The HVAC system will not operate whether the door is off or on
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