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

This 5-conductor cable typically follows the industry-standard color code of Red

Ensure the outlet piping is full size and properly supported to maintain the rated discharge capacity during thermal expansion events

the 101052 housing is designed to withstand the thermal stress and acidic condensates typical of high-efficiency exhaust environments

For technicians managing HVAC repair parts

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