Lennox 78W57 Pressure Switch (101572-04)

Specifications

Part Number: 78W57
Manufacturer Part Number: 101572-04
Brand: Lennox
Product Type: Pressure Switch
Pressure Setting: Actuates at 0.27" W.C.
Label Color: Green
Configuration: SPST Normally Open (N.O.)
Contact Rating: 5 Amp Resistive at 24 VAC
Application: Lennox Furnaces and Heating Equipment
Genuine OEM Replacement Part

Common Symptoms

If your Lennox furnace in Calgary, Edmonton, Red Deer, Lethbridge, Medicine Hat, or anywhere in Alberta, or throughout the Greater Toronto Area, including Toronto, Mississauga, Brampton, Vaughan, Markham, Richmond Hill, Oakville, Burlington, Milton, Ajax, Pickering, and Oshawa, is experiencing pressure switch fault codes, the inducer motor runs but the burners won't ignite, intermittent heating, ignition lockouts, or the furnace starts and then shuts down before ignition, the Lennox 78W57 Pressure Switch (101572-04) may need to be replaced. This genuine OEM pressure switch is factory calibrated to actuate at 0.27" W.C. and verifies that the inducer motor is creating the proper draft before allowing the ignition sequence to continue, helping ensure safe and reliable furnace operation.

Buy your genuine OEM Lennox 78W57 Pressure Switch (101572-04) from OemHvacPartsCanada.ca.