ClimateMaster 33B0002N04 Valve 320788-702 A steady light usually indicates

A steady light usually indicates an internal hardware fault

25" shank for straightforward field replacement

Single-Throw (SPST) switch that opens the circuit on a temperature rise

it may fit other brands with identical dimensions

the board features snap track mounting

ClimateMaster 33B0002N04 Valve 320788-702 A steady light usually indicatesAs a veteran technician, you know that a failing thermostatic expansion valve (TXV) can cripple an entire geothermal or water source system. The ClimateMaster 33B0002N04 Valve is a precise metering device engineered to maintain the ideal refrigerant superheat across the evaporator coil. This specific ClimateMaster 33B0002N04 Thermal Expansion Valve is designed to handle the rigorous pressure differentials found in high performance HVACR applications,