SiBE01-829
Service Diagnosis 39
Part 6
Service Diagnosis
1. Caution for Diagnosis............................................................................40
2. Problem Symptoms and Measures .......................................................41
3. Service Check Function ........................................................................42
4. Troubleshooting ....................................................................................43
4.1 Error Codes and Description ..................................................................43
4.2 Indoor Unit PCB Abnormality .................................................................44
4.3 Freeze-up Protection Control, High Pressure Control or
Indoor Heat Exchanger Thermistor Abnormality ....................................45
4.4 Fan Motor or Related Abnormality (AC motor).......................................47
4.5 Thermistor or Related Abnormality.........................................................48
4.6 High Pressure Control in Cooling or
Outdoor Heat Exchanger Thermistor Abnormality .................................50
4.7 Hardware Error (Tact Switch Pin Short) .................................................52
4.8 Insufficient Gas.......................................................................................53
5. Check ....................................................................................................55
5.1 Thermistor Resistance Check ................................................................55
5.2 Installation Condition Check...................................................................56
5.3 Outdoor Unit Fan System Check............................................................57
5.4 Hall IC Check .........................................................................................57
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