Bard HVAC 5651-178BX Expansion Valve 30067439-890 often caused by GTO leads

often caused by GTO leads exceeding 8 feet or improper spark gaps (should be 1/8” to 3/16”)

this genuine Bradford White part ensures factory-spec tolerances for gas flow and mounting alignment

50/60 Hz single-phase motor is a factory authorized part engineered specifically for pre-lubrication sequences

these two part numbers are identical in construction

Precision Flow Control: The 5

Bard HVAC 5651-178BX Expansion Valve 30067439-890 often caused by GTO leadsThe Bard HVAC 5651 178BX Thermostatic Expansion Valve is a critical metering device designed to regulate refrigerant flow into the evaporator coil, ensuring precise superheat control across varying thermal loads. This TXV replacement features 3 8" x 3 8" connections and serves as the official Bard 5651 178 direct replacement, improving system reliability in specialized wall mount units and heat pump applications. For technicians troubleshooting HVAC