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Carrier 48GP060090300 Furnace Door Switch
A furnace door switch is a safety feature that blocks the fan and other risky devices being triggered to start in order to prevent injury and fire. You should really have it changed at once if it is causing you problems.
Simple warnings that your switch on the furnace door really needs to be replaced?
- The switch is eroded
- The furnace does not run even with the door closed
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