SiBE12-908 Troubleshooting
Service Diagnosis 112
2.3 Air conditioner runs but does not cool (heat).
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Incorrect temperature setting
Incorrect combination of indoor unit and outdoor unit
Blocked air filter
Insufficient power
Refrigerant piping is too long
Improper setting of piping length
Defective field piping (squeezed, etc.)
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