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Gree inverter AC error HC: meaning and fix

PFC protection: fault in the part that conditions power for the compressor.

Updated 11-Nov-2026

These codes mean the same on most Gree inverter split AC models (such as the Pular and Fairy series). Some models differ slightly, so check your AC's manual or model number too.

What does Gree error HC mean?

HC means the PFC section of the outdoor board found a problem. This section cleans up the mains power before it reaches the compressor. Power surges, low voltage or a loose plug are common causes.

Why does code HC appear?

  • Mains voltage swings a lot.
  • The AC's plug or the wiring at the board is loose.
  • The indoor or outdoor coil is dirty.
  • The outdoor board is faulty.

What can you safely check for HC?

  • Switch the power off for 5 minutes, then start the AC again.
  • Check that the AC's plug sits firmly in the socket and is not burnt.
  • Clean the filters.

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 HC keeps coming back or the plug looks burnt, call a mistri. Testing the board is electrical work; don't do it yourself.

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