Lochinvar & A.O. Smith 100277936 Pressure Switch Els PW 17895 or a dirty inducer blower

or a dirty inducer blower wheel that is unable to pull a consistent draft

Is this compatible with horizontal furnace installations

ensuring a secure fit on standard heavy-duty motor shafts

code 42 on many residential units indicates a condensate double trap or blockage issue

The White-Rodgers 1E65-144 features permanent setpoint memory

Lochinvar & A.O. Smith 100277936 Pressure Switch Els PW 17895 or a dirty inducer blowerThe Lochinvar & A. O. Smith 100277936 Pressure Switch is a critical safety component designed for precise differential pressure sensing in high efficiency condensing boilers and water heaters. Engineered with a specific set point of 0. 75" W. C. (PF), this 0. 75 pressure switch ensures the combustion air blower is generating sufficient draft before allowing the ignition sequence to proceed. As a direct Lochinvar PRS1011 replacement, it maintains the