Lennox Pressure Switch Troubleshooting

Lennox Furnace Starts/Stops? Pressure Switch Replacement 80W57

Furnace starts then stops? This video provides step-by-step instructions for replacing the pressure switch (or vacuum switch) on Lennox furnaces. The most common reasons for replacing this switch are if the furnace does not heat or only runs for a few minutes. Buy part #80W57 now: https://www.repairclinic.com/PartDetail/2723483?TLSID=1879 ...

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