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Troubleshooting 31
7.12 P7(High temperature protection of IPM module Diagnosis and Solution)
Description:
If the temperature of IPM module is higher than a certain value, the LED displays the failure.
Recommended parts to prepare:
• Outdoor PCB
• IPM module board
Troubleshooting and repair:
Check the fastening screws on the
PCB and IPM radiator.
Are they
fixed tightly?
Replace the outdoor
control PCB.
Tighten the screws and apply
silicon grease.
NO
YES
Summary of Contents for U6MRS32-18
Page 1: ...SERVICE MANUAL ENGLISH AIR CONDITIONING SYSTEMS LCAC...
Page 4: ......
Page 5: ...Contents 1 Precautions 2 2 Information servicing For flammable materials 3 Safety Precautions...
Page 11: ...Contents 1 Model Reference 2 2 External Appearance 3 Model Reference...
Page 14: ...Model Reference 4 2 2 Outdoor Unit Outdoor Unit...
Page 18: ...IDU Compact Cassette 4 2 Dimensional Drawings...
Page 20: ...IDU Compact Cassette 6 4 Service Place...
Page 49: ...IDU A6 Duct 8 6 Fan Performance 18K...
Page 50: ...IDU A6 Duct 9 Constant air volume...
Page 68: ...IDU Floor Ceiling 5 4 Service Place 35mm 1 38in 1m 3 28ft 35mm 1 38in 35mm 1 38ch...
Page 93: ...Outdoor Unit 3 Panel Plate B30...
Page 94: ...Outdoor Unit 4 Panel Plate BA30...
Page 95: ...Outdoor Unit 5 Panel Plate CA30...
Page 96: ...Outdoor Unit 6 Panel Plate D30...
Page 97: ...Outdoor Unit 7 Panel Plate E30...
Page 98: ...Outdoor Unit 8 Panel Plate 590...
Page 99: ...Outdoor Unit 9 2 Service Place...
Page 110: ...Wiring Diagrams Outdoor unit wiring diagram 16022000022493...
Page 111: ...Outdoor unit printed circuit board diagram 17122000002718...
Page 280: ...AIR CONDITIONING SYSTEMS LCAC Scan here to download the latest version of this manual...