58
16.5.12 Outdoor High Pressure Switch Activate (F12)
Malfunction Decision Conditions:
During operation of cooling and heating, when pressure 4.5MPa and above is detected by outdoor high pressure
switch.
Malfunction Caused:
1 Dust accumulation on the outdoor unit heat exchanger.
2 Air short circuit at outdoor unit.
3 Faulty
water
pump.
4 Insufficient water flow rate in system.
5 Water leak in system.
6 2/3 way valve closed.
7 Clogged expansion valve or strainer.
8 Excessive
refrigerant.
9 Faulty outdoor high pressure sensor and switch.
10 Faulty outdoor unit PCB.
Abnormality Judgment:
Continue 4 times in 20 minutes.
Summary of Contents for WH-SXH09D0E8
Page 8: ...8 4 Location of Controls and Components 4 1 Indoor Unit 4 1 1 Location of Control ...
Page 9: ...9 ...
Page 10: ...10 ...
Page 11: ...11 4 1 2 Weekly Timer Setting ...
Page 12: ...12 4 1 3 Main Components 4 2 Outdoor Unit ...
Page 13: ...13 5 Dimensions 5 1 Indoor Unit ...
Page 14: ...14 5 2 Outdoor Unit ...
Page 16: ...16 7 Block Diagram ...
Page 17: ...17 8 Wiring Connection Diagram 8 1 Indoor Unit ...
Page 18: ...18 8 2 Outdoor Unit ...
Page 19: ...19 9 Electronic Circuit Diagram 9 1 Indoor Unit ...
Page 20: ...20 9 2 Outdoor Unit ...
Page 21: ...21 10 Printed Circuit Board 10 1 Indoor Unit 10 1 1 Main Printed Circuit Board ...
Page 22: ...22 10 2 Outdoor Unit 10 2 1 Main Printed Circuit Board ...
Page 23: ...23 10 2 2 Noise Filter Printed Circuit Board ...
Page 77: ...77 17 3 To Remove Pressure Gauge 17 4 To Remove Control Panel ...
Page 78: ...78 17 5 To Remove RCCB 17 6 To Remove Transformer and Electronic Controller Board ...
Page 80: ...80 When reinstall the water pipe use grease or water at the joining ...
Page 86: ...86 19 2 Outdoor Unit ...
Page 87: ...87 ...