Gree Split AC Error Code E5 — What It Means & How to Fix It

What Does This Error Mean?

E5 means the AC is drawing more electrical current than is safe. The system shuts down to protect components from burning out. Check your power supply voltage and clean the outdoor unit as first steps.

Affected Models

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

Common Causes

Low supply voltage forcing the AC to draw higher current to maintain power
Dirty outdoor coil making the compressor work harder and draw more current
Low refrigerant charge increasing compressor load and current draw
Faulty current sensor on the indoor or outdoor PCB giving false readings
Loose or damaged wiring in the electrical supply to the outdoor unit

How to Fix It

Turn the AC off at the main switch and wait 10 minutes before doing anything.

An over-current event can leave components stressed. A brief rest allows any thermal protection to reset.
Check the supply voltage at the outdoor unit using a multimeter if possible, or contact your electrician.

Gree inverter ACs typically require 220–240 V. If voltage drops below 200 V under load, the AC draws excess current to compensate.
Inspect the outdoor unit. Clean the condenser coil fins with a gentle hose rinse if they are dirty.

A dirty condenser forces the compressor to work longer and harder, raising current draw above safe limits.
Check that the power cable to the outdoor unit is firmly connected at both ends with no signs of scorching or damage.

Loose connections create resistance, which can cause voltage drop and false over-current readings.
Restart the AC. If E5 returns within a short time, call a technician to test the current sensor and refrigerant charge.

A faulty current sensor can trigger E5 even when the actual current is normal. Only a technician with tools can confirm this.

When to Call a Professional

Call a technician if E5 persists after checking the power supply and cleaning coils. Wiring faults and current sensor replacements require professional diagnosis. Do not operate the AC with suspected electrical faults — this can be a fire risk.

Frequently Asked Questions

Can a power surge cause E5 on a Gree AC?

Yes — a sudden voltage spike or dip can trigger the over-current sensor. If E5 appeared once during a storm or power event and has not returned, the unit is likely fine. If it recurs regularly, have the supply voltage checked.

Does E5 mean the compressor is failing?

Not necessarily — E5 can be caused by low voltage or dirty coils, not just a failing compressor. However, if E5 persists after cleaning and the voltage is normal, a struggling compressor is a possibility. A technician can test compressor current draw directly.

Is it safe to keep resetting E5?

Resetting E5 repeatedly without fixing the cause risks burning out the compressor or wiring. Fix the root cause first — check voltage, clean the coil, inspect wiring — before restarting. If it keeps coming back, stop and call a technician.