often accompanied by specific error codes on the unit's control display

which allows for convenient charging or pressure monitoring without additional line taps

Designed specifically for the Honeywell DR4300 series and other compatible circular chart recorders

providing a stable low-voltage current to reach the control board

OEM Integrity: Dedicated York S1-024-25329-706 specifications ensure exact terminal alignment and mounting footprint

Lochinvar & A.O. Smith 100165921 Flame Sensor Els PW 17895 often accompanied by specific errorThe Lochinvar & A. O. Smith 100165921 Flame Sensor is a critical OEM replacement part engineered for precise flame rectification in high efficiency gas fired systems. Designed as a direct crossover for the PLT30001 flame sensor, this component monitors the burner's ionization signal to ensure safe and continuous combustion. If your boiler or water heater is experiencing intermittent flame ignition failure or short cycling, a fouled or oxidized flame