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Nordyne M2RL-100A Furnace Door Switch
The furnace door switch blocks the blower and other risky devices from turning on so as to avoid injuries. It is quite important to have it switched out as soon as possible if it is damaged so as to prevent something bad happening.
Simple indications of a poorly performing switch on the furnace door
- The switch looks worn
- The furnace will not begin even with the door closed
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