P5
Gree Split AC
Severity: ModerateWhat Does This Error Mean?
P5 means the compressor current exceeded the safe limit measured by the outdoor drive board. Dirty coils, low voltage, or a compressor starting to fail are the most common causes. Cleaning the outdoor unit and checking voltage are the 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 compressor to draw extra current
- Dirty or blocked outdoor coil increasing compressor load
- Dirty or blocked indoor air filter restricting airflow
- Compressor motor starting to wear and drawing more current than normal
- Refrigerant charge incorrect — too much or too little affects compressor load
How to Fix It
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Turn off the AC and clean or replace the indoor air filter.
A blocked filter is the single easiest fix — it reduces load on the whole system.
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Clean the outdoor coil fins with a gentle spray of water from the inside out.
Blocked coil fins dramatically increase compressor load and current draw.
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Ensure the outdoor unit has at least 50 cm of clear space on all sides.
Recirculation of hot exhaust air is a common overlooked cause of P5 on hot days.
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Check if the supply voltage at your outlet is within the rated range for your unit.
Voltage below the minimum rated input increases current draw significantly.
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If P5 persists after cleaning and voltage is normal, book a service call.
A technician will check refrigerant levels and compressor current draw to identify the root cause.
When to Call a Professional
Call a technician if cleaning the outdoor unit and filters does not resolve the P5 error. They will check supply voltage, refrigerant pressure, and compressor current draw with gauges. Do not ignore recurring P5 errors — they can progress to compressor damage.
Frequently Asked Questions
What is the difference between Gree P5 and LE error codes?
Both relate to compressor current, but LE is an instantaneous massive spike (like a seized compressor). P5 is a sustained current overload — the compressor is working too hard over time. P5 is more likely to have a fixable cause like dirty coils or low voltage.
How often should I clean my Gree outdoor unit to prevent P5?
Clean the outdoor coil at least once a year — more often if you are near trees, dust, or heavy pollen. The indoor filter should be cleaned every 2 to 4 weeks during heavy use.
Can low refrigerant cause a Gree P5 error?
Yes. Low refrigerant makes the compressor work harder to achieve the same cooling output. If cleaning and voltage checks do not resolve P5, refrigerant level should be checked by a licensed technician.