York S1-031-09182-000 Control Board 320735-701 Constant discharge from the relief

Constant discharge from the relief valve typically indicates internal fouling or a worn seat

Replace this unit if you observe heavy frost accumulation on the evaporator coils despite the heater being functional

ensure you match the voltage and frequency to the specific job site requirements

maintaining system integrity across various burner sizes such as 445

York S1-031-09182-000 Control Board 320735-701 Constant discharge from the reliefWhen you're troubleshooting VAV systems or handling complex economizer setups on the job site, the York S1 031 09182 000 Control Board is the standard OEM solution for expanding communication protocols. This expansion module, often categorized as a VAV Econ expansion board, HVAC control board replacement, and York replacement part, is engineered specifically for HVAC system communication modules and VAV control board expansion. It provides the