When should the seat kit be replaced versus the entire valve

reducing communication-related error codes

you must manually cycle the thermostat or remove 120V power for 5 seconds to clear the lockout

Reliable Seal Performance: Features high-quality elastomers and a precision-engineered seat to prevent nuisance discharge and pressure fluctuations

Lochinvar & A.O. Smith 100209982 Blower Assembly 321042-401 When should the seat kitThe Lochinvar & A. O. Smith 100209982 Blower Assembly is a critical OEM replacement part engineered for high performance combustion and exhaust management in residential and light commercial gas water heater systems. As a genuine PDV blower assembly kit, this unit is built to the exact specifications required by Lochinvar and A. O. Smith, ensuring a drop in fit for PR 4040 series and other compatible power direct vent models. For technicians, this