ClimateMaster 33B0045N04 Expansion Valve 326070-701 or "pressure switch" error codes

or "pressure switch" error codes on your system controller

Verify that the motor is receiving 230V line voltage and the proper 24V or PWM signal from the board

With a draw of 1

Field Adjustable Range: High-precision setpoint control between 0

this assembly provides a drop-in solution to restore factory-spec CFM output and maintain system integrity

ClimateMaster 33B0045N04 Expansion Valve 326070-701 or "pressure switch" error codesThe ClimateMaster 33B0045N04 Expansion Valve is a critical metering device designed for precise refrigerant control within high efficiency geothermal and water source heat pump cycles. As a genuine OEM ClimateMaster replacement part, this thermal expansion valve (TXV) ensures the evaporator coil receives the exact mass flow of refrigerant required to maintain optimal superheat across varying load conditions. For a field technician, the 33B0045N04 is