H2
Rheem
Compressor Overheat / High Discharge Temperature Protection
Rheem inverter air conditioner displays H2 and may shut down in heating mode; indoor unit may blow cool air.
Advertisements
Safety Warning
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.
Advertisements
Possible Causes
Blocked outdoor coil, Low indoor airflow (dirty filter or blower issue), Low refrigerant charge causing high discharge temps, Faulty discharge temperature sensor
How to Fix / Troubleshooting
Safety first: Turn off power to both indoor and outdoor units.
- Clean filters and coils: Wash indoor filters and clean indoor and outdoor coils. Ensure all supply and return registers are open.
- Check fan motors: Confirm both indoor and outdoor fans run at proper speed. Replace failing motors.
- Inspect discharge sensor: Verify the sensor is properly attached and not heat-damaged. Replace if necessary.
- Call technician: If H2 recurs, a professional should check refrigerant charge and system operation.
Warning: Prolonged operation with H2 conditions can damage the compressor.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Rheem Compressor Discharge Temperature Sensor / Indoor & Outdoor Coils
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements