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

What Does This Error Mean?

LD is a critical error — the compressor is receiving incomplete or unbalanced power. Running a compressor with a missing phase causes severe motor damage within minutes. Switch the unit off and call a technician immediately.

Affected Models

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

Common Causes

One phase of the 3-phase power supply has dropped out (commercial/larger units)
A compressor motor winding connection has broken or come loose
Outdoor PCB not delivering balanced power to the compressor
Faulty contactor or relay in the outdoor unit power circuit
Incoming supply voltage severely unbalanced at the building's distribution board

How to Fix It

Turn off the AC immediately and switch off the outdoor unit breaker.

Do not attempt to restart the unit — phase loss causes rapid and severe motor damage.
Check whether other high-power appliances on the same circuit are working normally.

If lights or other appliances are also behaving oddly, the issue may be at your electrical panel or with the utility supply.
Contact your electricity provider if you suspect a supply-side fault.

A missing phase from the utility grid will cause multiple appliances to fail, not just the AC.
If the supply voltage is normal, call a Gree-certified technician to inspect the outdoor unit.

The fault could be a broken compressor wire, a failed contactor, or a damaged outdoor PCB.
Do not restart the unit until the technician confirms the phase issue is fully resolved.

Even brief operation with phase imbalance shortens compressor life significantly.

When to Call a Professional

This is a critical fault — stop using the unit immediately and call a licensed technician. Running the compressor on an unbalanced phase causes catastrophic motor winding damage. The technician must test supply voltage balance, compressor windings, and all contactors before restarting.

Frequently Asked Questions

Is the Gree LD error dangerous?

Yes — for the compressor. Running a compressor on an incomplete phase can destroy the motor windings in a very short time. This is the most expensive type of AC repair, so do not ignore this error.

Does LD only appear on 3-phase Gree units?

Primarily yes — 3-phase power is common in commercial and larger residential Gree installations. On single-phase units, LD can indicate a compressor winding connection fault or a severe voltage imbalance detected by the drive board.

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

If it is a wiring or contactor fault, the repair cost is moderate. If the compressor motor windings are already damaged, the cost is much higher — potentially requiring compressor replacement. Fast action minimises the repair cost.