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ESIE02–01
Error Codes: System Malfunctions
Part 3 – Troubleshooting
3–59
3
3
4
5
1
Troubleshooting 2
To troubleshoot, proceed as follows:
Turn off the power
supply, disconnect the
NO.2 indoor-outdoor
transmission wire, and turn
power supply back on.
Is HAP flashing?
YES
YES
NO (ON or OFF)
NO (OFF)
NO
Is HAP flashing?
YES
NO
Is HAP flashing?
Continued from
previous page
Is HAP on?
Check of
outdoor unit
microcom-
puter normal
HAP
YES
Turn the power supply off
once and then back on.
Failure of indoor unit PCB.
Failure of outdoor unit PCB or
malfunction of power supply
system.
Indoor PCB malfunction.
Resets normally.
Could be outside cause (noise...).
Failure of outdoor unit PCB.
Resets normally.
Could be outside cause
(noise...).
"U4" displays
constantly?
YES
NO
Summary of Contents for Sky Air R-407C
Page 1: ...ESIE02 01 Service Manual Sky Air R 407C B series SV p p p...
Page 2: ......
Page 3: ...ESIE02 01 Service Manual Sky Air R 407C B series SV p p p...
Page 4: ......
Page 16: ...Introduction ESIE02 01 xii 3 1 4 5...
Page 18: ...ESIE02 01 1 2 Part 1 System Outline 3 1 1 5...
Page 42: ...General Outline Outdoor Units ESIE02 01 1 26 Part 1 System Outline 3 1 1 4 5...
Page 49: ...ESIE02 01 General Outline Indoor Units Part 1 System Outline 1 33 3 1 4 5...
Page 72: ...General Outline Indoor Units ESIE02 01 1 56 Part 1 System Outline 3 1 1 4 5...
Page 86: ...Specifications ESIE02 01 1 70 Part 1 System Outline 3 1 1 4 5...
Page 110: ...ESIE02 01 1 94 Part 1 System Outline...
Page 130: ...Switch Box Layout ESIE02 01 1 114 Part 1 System Outline 3 1 1 4 5...
Page 180: ...PCB Layout ESIE02 01 1 164 Part 1 System Outline 3 1 1 4 5...
Page 182: ...ESIE02 01 2 2 Part 2 Functional Description 3 1 2 5...
Page 204: ...General Functionality ESIE02 01 2 24 Part 2 Functional Description 3 1 2 4 5...
Page 216: ...Overview of the cooling mode functions ESIE02 01 2 36 Part 2 Functional Description 3 1 2 4 5...
Page 232: ...ESIE02 01 3 2 Part 3 Troubleshooting 3 1 3 5...
Page 294: ...Error Codes System Malfunctions ESIE02 01 3 64 Part 3 Troubleshooting 3 1 3 4 5...