63
16.5.21. IPM Overheating (F96)
Malfunction Decision Conditions:
During operation of heating, temperature 95
°
C is detected by the outdoor IPM temperature sensor.
Malfunction Caused:
1. IPM overheat due to short circuit of hot discharge air flow.
2. IPM overheat due to defective of outdoor fan motor.
3. IPM overheat due to defective of internal circuitry of IPM.
4. IPM overheat due to defective IPM temperature sensor.
Abnormality Judgment:
Continue 3 times in 30 minutes.
Summary of Contents for WH-UD28AE
Page 10: ...10 4 Location of Controls and Components 4 1 Indoor Unit 4 1 1 Location of Control ...
Page 11: ...11 ...
Page 12: ...12 4 1 2 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 Capacitor Printed Circuit Board 10 2 3 Noise Filter Printed Circuit Board ...
Page 68: ...68 17 3 To Remove Pressure Gauge 17 4 To Remove Control Panel ...
Page 69: ...69 17 5 To Remove Electronic Controller Board and Transformer 17 6 To Remove RCCB ...
Page 71: ...71 When reinstall the water pipe use grease or water at the joining ...
Page 79: ...79 19 2 WH UD24AE WH UD28AE ...
Page 80: ...80 ...