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ESIE05-04
Error Codes
Part 3 – Troubleshooting
3–35
4
5
1
3
2.4
Malfunctioning Drain System (
AF
)
Error code
AF
LED indications
The table below shows the LED indications.
Error generation
The error is generated when the float switch changes from ON to OFF while the compressor is OFF.
Causes
The possible causes are:
Q
Error in the drain pipe installation
Q
Malfunctioning float switch
Q
Malfunctioning indoor unit PCB.
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Operation
HAP (green)
HBP (green)
Normal
c
c
Malfunctioning
c
c
Are float
switch and drain
pipe normal?
Is water
drainage system
normal?
Is drain-up
kit installed?
Is drain pump
normal?
Does drain
water flow in reverse
during non-
operation?
Is
amount
of circulated drain
water excessive after
pump stops
operation?
Clogged drain water discharge
system
Clogged drain pump
Faulty float switch
Replace indoor unit PCB.
Check to see if drain-up height
and horizontal pipe length
exceed specifications.
Check jumper connector X15A.
Check drain pump and drain
Check water drainage system.
Check to see if drain-up height
and horizontal pipe length
exceed specifications.
Faulty trap in water drainage
system
Replace indoor unit PCB.
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
∗
In FHQ and FAQ problems can also
occur in the optional drain-up kit.
Possible failure of float switch.
Check to see if drain-up height
and horizontal pipe length
exceed specifications.
NO
Summary of Contents for FCQ35B7V1
Page 1: ...Service Manual ESIE05 04 R 410A Sky Air Indoor...
Page 2: ......
Page 20: ...ESIE05 04 1 2 Part 1 System Outline 3 1 1 5...
Page 62: ...General Outline ESIE05 04 1 44 Part 1 System Outline 3 1 1 4 5...
Page 78: ...ESIE05 04 1 60 Part 1 System Outline...
Page 112: ...Wiring Diagrams ESIE05 04 1 94 Part 1 System Outline 3 1 1 4 5...
Page 140: ...ESIE05 04 2 2 Part 2 Functional Description 3 1 2 5...
Page 164: ...ESIE05 04 3 2 Part 3 Troubleshooting 3 1 3 5...
Page 206: ...Error Codes ESIE05 04 3 44 Part 3 Troubleshooting 3 1 3 4 5...
Page 224: ...Additional Checks for Troubleshooting ESIE05 04 3 62 Part 3 Troubleshooting 3 1 3 4 5...
Page 226: ...ESIE05 04 4 2 Part 4 Commissioning and Test Run 3 1 4 5...
Page 252: ...ESIE05 04 5 2 Part 5 Disassembly and Maintenance 3 1 5...
Page 384: ...Disassembly and Maintenance ESIE05 04 5 134 Part 5 Disassembly and Maintenance 3 1 5 5...
Page 390: ...ESIE05 04 vi Index 3 1 4 5 W Wiring diagrams Indoor units k 1 61...