What does Gree error H5 mean?
In an inverter AC, a power module (IPM) drives the compressor's speed. H5 means this module detected overcurrent or a fault and stopped the compressor. Often the cause is heat, a dirty coil or low voltage, but the board or compressor can also be faulty.
Why does code H5 appear?
- The outdoor coil is dirty or gets no airflow.
- Mains voltage is low or unstable.
- Gas pressure is not right.
- The outdoor board (IPM) or compressor is faulty.
What can you safely check for H5?
- Switch the power off for 5 minutes, then start the AC again.
- Keep space open around the outdoor unit.
- Watch the voltage. Don't run the AC on low voltage.
Safety: never reach into an electrical panel, board, gas pipe or the inside of an inverter yourself. You can get a shock or release gas. This is a mistri's job.
When should you call a mistri?
If H5 keeps coming back, call a mistri. The board can hold charge even after the power is off, so don't open the outdoor unit's cover yourself.