In brief
Fault code E5 on Gree All ranges means: Code E5 is a protection against unstable power supply (voltage spikes) or excessive current draw by the unit. Most common cause: Unstable mains voltage (voltage drop), undersized electrical installation, or a compressor that is mechanically straining. First action: Check the incoming voltage (must be > 200V).. Call a registered engineer if the fault returns after basic checks or involves refrigerant work (F-Gas registered engineer required).
According to the Gree Electrical Safety Manual, the E5 code is triggered by overcurrent protection during cooling or dehumidification cycles, stopping the compressor and outdoor fan while the indoor fan continues to run.
E5 • Gree • All ranges
Gree fault code E5: Overcurrent protection (unstable voltage)
Code E5 is a protection against unstable power supply (voltage spikes) or excessive current draw by the unit.
Source: Gree Electrical Safety Manual
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What does fault code E5 on Gree mean?
Code E5 is a protection against unstable power supply (voltage spikes) or excessive current draw by the unit.
Unstable mains voltage (voltage drop), undersized electrical installation, or a compressor that is mechanically straining.
Symptoms
- Intermittent operation
- House lights dim when the air-con starts
Diagnosis
1. Measure voltage
- Check the incoming voltage (must be > 200V).
- Check the tightness of the electrical terminal blocks.
How to reset fault code E5 on Gree?
Stabilise the power supply. If the voltage is correct, the compressor or the PCB may be faulty.
When should you call an F-Gas engineer?
This code appears when the system detects excessive current draw, causing a safety shutdown of the compressor and outdoor fan. It often manifests as a specific flashing of indicator lights and a total stop of cooling or heating production depending on the mode.
Affected models
- Multi21 Plus (30k/36k/42k)
- Sapphire (18MBH/24MBH)
- High Static Slim Duct
- Multi Plus Ultra
- Livo Plus (30k/36k 230V)
- All Match Floor Ceiling R32 (9k/24k)
Field context
This code appears when the system detects excessive current draw, causing a safety shutdown of the compressor and outdoor fan. It often manifests as a specific flashing of indicator lights and a total stop of cooling or heating production depending on the mode.
Technical source data
The E5 code on Gree indicates an overcurrent protection activated during cooling or dehumidification cycles, causing the compressor and outdoor fan to stop while the indoor fan continues to run (Extracts 3, 5, 6, 7, 8). Identified causes include unstable or low supply voltage under high load, a dirty evaporator, or hardware faults such as a poorly adjusted compressor connection, a faulty overcurrent fuse, or a failed main PCB (Extracts 1, 4). Diagnosis should check the mains voltage, evaporator condition, and connection continuity before replacing electronic components, noting that if the voltage is normal, the energy supplier or main PCB should be involved (Extracts 1, 4).
Sources: multi21 plus service manual 30k 36k 42k c — multi21-plus-service-manual-30k-36k-42k-c.pdf (p. 33) · sapphire service manual 18mbh and 24mbh models a — sapphire-service-manual-18mbh-and-24mbh-models-a.pdf (p. 25) · high static slim duct service manual b — high-static-slim-duct-service-manual-b.pdf (p. 32)
Frequently asked questions
What are the exact symptoms when code E5 appears?
During cooling or dehumidification, the compressor and outdoor fan stop while the indoor fan continues to run. In heating mode, all loads stop. The display shows E5 and flashes (often 5 times depending on the model), while the cooling or heating indicator turns off (Extracts 3, 5, 6, 7, 8).
How do I diagnose a cause related to the power supply?
First check the stability and level of the supply voltage. If the voltage is unstable or too low under high load, this can trigger the protection. If the voltage is normal, contact the electricity distribution company to check for voltage spikes or network issues (Extracts 1, 3, 5).
What are the repair procedures if external causes are ruled out?
Inspect the compressor connection and adjust it if necessary. Check if the current exceeds the protector setting; replace the overcurrent fuse if needed. If the high pressure is normal and the voltage is correct, the main PCB may be faulty and must be replaced (Extracts 1, 4).
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