What does the 'GV Relay Fail' code mean on my Lochinvar Knight boiler

and HVAC zone control systems

handling up to 5

Professional technicians understand that maintaining low water cut-off integrity is non-negotiable for system safety

this York fan center is frequently used by contractors to provide the necessary 24V control power and relay switching needed to integrate a cooling coil and thermostat into an older heating system

Lennox 93W13 Blower Assembly Refrigerant What does the 'GV RelayWhen you're out on a service call and find a seized inducer, the Lennox 93W13 Blower Assembly is the exact OEM drop in fix you need for 80% and 90% AFUE furnaces. This combustion air inducer motor is a complete 115V, 60Hz assembly that includes the shading pole motor, blower wheel, and housing. It is a direct, identical replacement for the Lennox 93W1301 and also replaces older part numbers like 73W44, 73W4401, and LB 94724AE. Running at 3400 RPM with