If you’re looking for help fixing your McQuay air conditioner, look no further! Our comprehensive McQuay air conditioner repair guide will explain common issues, provide troubleshooting tips, and show you how to read your model’s error codes.

CODE: E1
PROBLEM: Compressor 2 low pressure faulty

CODE: E2
PROBLEM: Compressor 2 high pressure faulty

CODE: E3
PROBLEM: Compressor 2 overload

CODE: E4
PROBLEM: Indoor coil 2 temperature sensor fault

CODE: E5
PROBLEM: System 2 leaving water temperature 2 faulty

CODE: F2
PROBLEM: Indoor coil 1 temperature sensor fault

CODE: F4
PROBLEM: Return air temperature sensor fault

CODE: F6
PROBLEM: Communication faulty

CODE: F9
PROBLEM: Compressor 1 refrigerant leak

CODE: FE
PROBLEM: Compressor 2 refrigerant leak

CODE: H1
PROBLEM: Compressor 1 overload

CODE: H4
PROBLEM: Compressor 1 high pressure faulty

CODE: L1
PROBLEM: Compressor 1 low pressure faulty

CODE: L3
PROBLEM: Temperature of water entering too high or low

CODE: L4
PROBLEM: Water flow switch faulty

CODE: L5
PROBLEM: System 1 leaving water temperature 1 faulty

mcquay air conditioner codes

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