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23
Troubleshooting by Error Code
Common Check Procedures
Temperature Sensor Check
Disconnect the temperature sensor from PCB, measure the resistance value with a tester.
Temperature Sensors.
Room temp. (T1) sensor,
Indoor coil temp. (T2) sensor,
Outdoor coil temp.(T3) sensor,
Outdoor ambient temp.(T4) sensor,
Compressor discharge temp.(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.
Fig. 17 — Compressor Checking
Table 15 — Compressor Checking
Fig. 18 — Compressor Checking
POSITION RESISTANCE VALUE
ASN98D22UFZ ATM115D43UFZ2 ATF235D22UMT
Blue - Red
1.57
(20°C/68°F) 1.87(20°C/68°F) 0.75(20°C/68°F)Blue - Black
Red - Blue
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