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Lennox Pressure Switch 34M76
This part 34M76 is compatible with:
- Product Type:
- Central Air Conditioner, Furnace
- Brands:
- Lennox
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Pressure Switch Customer Reviews
Common Problems Fixed by the Pressure Switch
Based on customer reports and repair data, this part commonly fixes these issues:
Furnace takes too long to heat the home
Furnace burners won't stay lit
Furnace starts then stops
Central air conditioner not cooling properly
Central Air Conditioner Condenser fan motor does not run
Central Air Conditioner Condensing unit does not run
Heat pump not cooling
Heat pump not heating
Heat pump compressor won't run
Furnace is frequently cycling/short cycling
Furnace not heating
About the Pressure Switch
The pressure switch closes when the burner has sufficient airflow. If the pressure switch isn’t working, it might not close when the proper airflow is present, resulting in the furnace taking too long to heat the home. If the ignition process stalls, the furnace will shut off. To determine if the pressure switch is defective, use a multimeter to test the switch for continuity. If the pressure switch does not have continuity, replace it.
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