508067-01 Issue 2016 Page 59 of 75
Troubleshooting by Error Codes
Temperature Sensor Check
Disconnect the temperature sensor from PCB, measure the resistance value with a tester.
Temperature Sensors:
• Room temperature (T1) sensor,
• Indoor coil temperature(T2) sensor,
• Outdoor coil temperature (T3) sensor,
• Outdoor ambient temperature (T4) sensor,
• Discharge temperature (T5) or (TP) sensor.
Measure the resistance value of each winding by using the multi-meter.
Compressor Checking
Measure the resistance value of each winding by using the tester
Figure 26. Input Terminal
Position Resistance Value
Model ASN98D22UFZ ASK89D29UEZD ASN140D21UFZ ATF235D22UMT
Blue - Red
1.57(20°C/68°F) 1.99(20°C/68°F) 1.28(20°C/68°F) 0.75(20°C/68°F)Blue - Black
Red - Blue
Table 15. Compressor Terminal Resistance
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