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ESIE02–01
Error Codes: System Malfunctions
Part 3 – Troubleshooting
3–61
3
3
4
5
1
4.6
Transmission Error between MAIN Remote Control
and SUB Remote Control (
U8
)
Error code
U8
LED indication
The table below shows the LED indication.
Error generation
The error is generated when, in case of controlling with two remote controls, the microprocessor
detects that the transmission between the indoor unit and the remote controls (MAIN and SUB) is not
normal over a certain amount of time.
Causes
The possible causes are:
■
Transmission error between MAIN remote control and SUB remote control
■
Connection among SUB remote controls
■
Malfunctioning remote control PCB.
Troubleshooting
To troubleshoot, proceed as follows:
Operation
HAP (green)
H1P (red)
H2P (red)
Normal
6
8
8
Malfunctioning
—
—
—
Turn the SS-1 switch of one
remote controller to MAIN.
Turn OFF the power supply,
and restart operation.
Turn OFF the power once and
restart operation.
Replace remote controller PCB
if any error is generated.
Turn the SS-1switch of one
remote controller to MAIN.
Turn OFF the power supply,
and restart operation.
Controlling
with 2-remote
controller
Both SS-1
switches on remote
controllers are turned
to SUB
SS-1 switch
on remote controller
PCB is turned
to MAIN
NO
NO
NO
YES
YES
YES
Summary of Contents for FHC45BZ7V1
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...