Look for excessive corrosion on the burner ports

variable pitch sheave engineered for precise belt tensioning and power transmission in industrial HVACR systems

Common Questions What ignition controls is this harness compatible with

provided the coil voltage (24V) remains the same

Lochinvar & A.O. Smith 100208394 Pressure Switch Els PW 17895 Look for excessive corrosion onWhen you're out in the field and a high efficiency Lochinvar or A. O. Smith unit stays in a lockout loop, the Lochinvar & A. O. Smith 100208394 Pressure Switch is often the first critical safety component you need to bench test. Built for rigorous residential and commercial HVAC boiler and water heater applications, this SPDT (Single Pole Double Throw) switch provides the precise circuit control required to monitor internal pressure levels and prevent