46
16.5.3.
Compressor Low Pressure Protection (H42)
Error code will not display (no OFF/ON Control Panel LED blinking) but store in EEPROM
Malfunction Decision Conditions:
During operation of heating and after 5 minutes compressor ON, when outdoor pipe temperature below -29
°
C or above 26
°
C is
detected by the outdoor pipe temperature sensor.
Malfunction Caused:
1. Dust accumulation on the outdoor unit heat exchanger.
2. Air short circuit at outdoor unit.
3. 2/3 way valve closed.
4. Faulty outdoor unit fan motor.
5. Refrigerant shortage (refrigerant leakage).
6. Clogged expansion valve or strainer.
7. Faulty outdoor pipe temperature sensor.
8. Faulty outdoor unit main PCB.
Содержание WHSD24BE51
Страница 10: ...10 4 Location of Controls and Components 4 1 Indoor Unit 4 1 1 Location of Control ...
Страница 11: ...11 ...
Страница 12: ...12 4 1 2 Main Components 4 2 Outdoor Unit ...
Страница 13: ...13 5 Dimensions 5 1 Indoor Unit ...
Страница 14: ...14 5 2 Outdoor Unit ...
Страница 16: ...16 7 Block Diagram ...
Страница 17: ...17 8 Wiring Connection Diagram 8 1 Indoor Unit ...
Страница 18: ...18 8 2 Outdoor Unit ...
Страница 19: ...19 9 Electronic Circuit Diagram 9 1 Indoor Unit ...
Страница 20: ...20 9 2 Outdoor Unit ...
Страница 21: ...21 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board ...
Страница 22: ...22 10 2 Outdoor Unit 10 2 1 Main Printed Circuit Board ...
Страница 23: ...23 10 2 2 Capacitor Printed Circuit Board 10 2 3 Noise Filter Printed Circuit Board ...
Страница 71: ...71 17 3 To Remove Pressure Gauge 17 4 To Remove Control Panel ...
Страница 72: ...72 17 5 To Remove Electronic Controller Board and Transformer 17 6 To Remove RCCB ...
Страница 74: ...74 When reinstall the water pipe use grease or water at the joining ...
Страница 79: ...79 18 3 Hydraulic Pump Performance ...
Страница 82: ...82 19 2 WH UD24BE5 1 WH UD30BE5 1 ...
Страница 83: ...83 ...