Air conditioner error codes
What an error code means, for which models, and how it shows - from the service manuals of each brand.
Casper42 error codes · 1 seriesDaikin137 error codes · 14 seriesGree60 error codes · 2 seriesLG50 error codes · 1 seriesMidea49 error codes · 1 seriesMitsubishi Heavy145 error codes · 2 seriesPanasonic106 error codes · 13 seriesSamsung41 error codes · 1 seriesToshiba22 error codes · 2 series
Guides
- Air conditioner repair, stage by stage: from the call to the hand-over
The eight stages of an air conditioner repair: symptoms, safety, reading the code, narrowing down, measuring, repairing, test run, hand-over. - How to read an air conditioner error code
Where the code shows, why one code means different things for different brands and models, and what to do before looking it up. - Communication error between indoor and outdoor unit: what to check, in which order
Communication (transmission) error codes usually come from the connecting wire, the supply or a board. The checks from easy to hard. - Checking an air conditioner temperature sensor (thermistor)
How to check the room, coil or discharge sensor when the unit reports a sensor error: measure its resistance and compare with the exact model's table. - Indoor or outdoor fan motor error: causes and checks
When the unit reports a fan error: check the mechanics, connectors, supply and speed feedback before replacing the motor or the board. - Pressure, low refrigerant and high discharge temperature errors: where to start
Pressure and discharge-temperature protection codes: tell a low charge from a blockage or poor heat rejection before charging.