Luxaire Reversing Valve or Refrigerant Circuit Issue (Heat Pump) / Compressor Not Running

Luxaire air conditioner produces warm air from vents instead of cool air when in cooling mode.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Heat pump reversing valve stuck in heat position, Compressor not starting, Low refrigerant charge, Thermostat wiring error (O/B signal)

Safety: Turn off power before opening panels.

Confirm mode: Ensure thermostat is set to COOL and not HEAT or EM HEAT.
Check outdoor unit: Verify that the Luxaire condenser fan and compressor are running. If only the fan runs, see compressor start issues above.
Heat pump wiring: For heat pumps, confirm that the O/B reversing valve wire is correctly connected at thermostat and air handler, and configured properly in thermostat settings.
Professional service: A stuck reversing valve or low charge requires an HVAC technician to diagnose and repair.

Hard 4/5

Reversing Valve

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