ESIE05-03
Error Codes: Indoor Units
Part 3 – Troubleshooting
3–45
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:
P
Error in the drain pipe installation
P
Malfunctioning float switch
P
Malfunctioning indoor unit PCB.
Troubleshooting
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
ESIE05-03.book Page 45 Wednesday, April 6, 2005 4:09 PM
Summary of Contents for RZQ100B7W1B
Page 1: ...Service Manual ESIE05 03 RZQ71 125B8V3B RZQ100 140B7W1B Sky Air Inverter R 410A B series...
Page 2: ......
Page 10: ...ESIE05 03 viii Table of Contents 3 1 4 5...
Page 24: ...ESIE05 03 1 2 Part 1 System Outline 3 1 1 5...
Page 32: ...General Outline Outdoor Units ESIE05 03 1 10 Part 1 System Outline 3 1 1 4 5...
Page 42: ...Specifications ESIE05 03 1 20 Part 1 System Outline 3 1 1 4 5...
Page 56: ...Functional Diagrams ESIE05 03 1 34 Part 1 System Outline 3 1 1 4 5...
Page 58: ...ESIE05 03 1 36 Part 1 System Outline...
Page 70: ...Wiring Diagrams ESIE05 03 1 48 Part 1 System Outline 3 1 1 4 5...
Page 84: ...PCB Layout ESIE05 03 1 62 Part 1 System Outline 3 1 1 4 5...
Page 86: ...ESIE05 03 2 2 Part 2 Functional Description 3 1 2 5...
Page 110: ...General Functionality ESIE05 03 2 26 Part 2 Functional Description 3 1 2 4 5...
Page 150: ...ESIE05 03 3 2 Part 3 Troubleshooting 3 1 3 5...
Page 188: ...Troubleshooting ESIE05 03 3 40 Part 3 Troubleshooting 3 1 3 4 5...
Page 264: ...Additional Checks for Troubleshooting ESIE05 03 3 116 Part 3 Troubleshooting 3 1 3 4 5...
Page 266: ...ESIE05 03 4 2 Part 4 Commissioning and Test Run 3 1 4 5...
Page 306: ...ESIE05 03 5 2 Part 5 Disassembly and Maintenance 3 1 5...