Midea Advantage Series User Manual

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7.4.2.15 The cooling operation or heating operation does not operate.
Potential causes
● Faulty 4-way valve
Check of 4-way, please refer to part 5 in 9.5 Trouble Criterion Of Main Parts.
7.4.2.16 When cooling, heat exchanger of non-operating indoor unit frosts.
When heating, non-operating indoor unit get warm.
Potential causes
● Faulty EXV
● Wire and tubing connected in reverse.
Check of EXV, please refer to part 6 in 9.5 Trouble Criterion Of Main Parts.
7.5 Trouble Criterion of Main Parts.
1.Temperature sensor checking
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.(T5) sensor.
Measure the resistance value of each winding by using the multi-meter.

Midea Advantage Series Specifications

General

Brand	Midea
Model	Advantage Series
Category	Heat Pump
Language	English