What does Haier error F2 mean?
F2 means the compressor suddenly drew far too much current, so the AC stopped it at once. It usually comes from low voltage, heavy heat or a compressor fault.
Why does code F2 appear?
- Low mains voltage.
- The outdoor coil is dirty or the fan is not working properly.
- Gas pressure is not right.
- The compressor or outdoor board is faulty.
What can you safely check for F2?
- Switch the power off for 5 minutes, then start the AC again.
- Check the voltage. If it is low, keep the AC off.
- Clean the filters and keep space open by the outdoor unit.
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 F2 still shows when the voltage is normal, call a mistri. Only a mistri should test the compressor and board.