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Lennox 18L89 Pressure Switch, Blower Proving, SPST, 0.14 +/-0.05" WC on Rise.

Manufacturer:
Manufacturer #:
18L89
Parts Town #:
LEN18L89
Previous Part #:
Units:
Each
Fits Models:
California Residents: 
Proposition 65 Warning

Lennox 18L89 Genuine OEM Replacement Part

The Lennox 18L89 Pressure Switch helps maintain safe and effective operation by managing power in response to pressure variations.

  • Real OEM buttons and switches provide reliable control when you need it most
  • Fits popular LCH420H4-02, LCH420S4-01, LCH420H4-01 units and more (see FITS MODELS below for complete list)
  • Common Equipment Type(s):
  • Application: Blower Proving
  • Configuration: SPST
  • Pressure Rating: 0.14 +/-0.05" WC on Rise
  • Product Type: Pressure Switch