Gree Split AC Error Code HE — What It Means & How to Fix It

What Does This Error Mean?

The HE code means the indoor unit's EEPROM memory chip has a fault. The chip stores important settings and calibration data for the control board. Power cycling often clears it — if not, the PCB likely needs replacement.

Affected Models

Gree FAIRY Series
Gree LOMO Series
Gree U-MATCH Series
Gree PULAR Series
Gree Inverter Split System

Common Causes

Power surge corrupted the EEPROM data
Indoor control board (PCB) has aged and the chip is failing
EEPROM chip physically damaged from moisture or voltage spike
Firmware update interrupted mid-process
Manufacturing defect in the memory chip

How to Fix It

Turn off the AC at the thermostat or remote.

This begins a soft reset — do not skip this step.
Switch off the circuit breaker for the AC unit.

Full power removal allows the EEPROM to clear any temporary fault state.
Wait 10 full minutes before restoring power.

A short wait may not be enough — the capacitors need time to fully discharge.
Turn the breaker back on and restart the AC normally.

If the HE code is gone, the fault was temporary and no further action is needed.
If the code returns immediately, contact a Gree-certified technician.

A recurring HE code means the EEPROM chip or the entire indoor PCB needs replacing.

When to Call a Professional

Call a technician if the error returns after power cycling. They will test or replace the indoor PCB. DIY replacement of the control board is possible but only attempt if comfortable with electrical work.

Frequently Asked Questions

Can I fix the Gree HE error myself?

Try a full power cycle first — switch off the breaker for 10 minutes. If the error clears, you are done. If it returns, the PCB needs professional attention.

Does HE mean my Gree AC is broken beyond repair?

Not necessarily. A power surge or temporary fault can trigger HE. If the board itself has failed, replacing the indoor PCB usually restores the unit fully.

How much does it cost to fix a Gree HE error?

If a power cycle fixes it, the cost is zero. If the PCB needs replacing, expect to pay for a service call plus parts — typically in the range of a standard board replacement.