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Error Codes: Indoor Units
ESIE05-03
3–44
Part 3 – Troubleshooting
3
1
3
4
5
Troubleshooting
Remark
If "A3" is detected by a PC board which is not mounted with X15A, the PC board is defective.
Caution
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Begin
Is the
unit a cassette
or built-in
type?
Is a
drain pump
connected to the
indoor unit
PCB?
Does the
drain pump work
after restarting
operation?
Is the
drain water level
abnormally
high?
Is
the float
switch connected
to X15A?
Does
"A3" appear on
the remote controller
display?
220-240
VAC?
Is there
continuity?
Is the
optional drain
raising mechanism
connected?
Is
the short
circuit connector
connected to X15A on
the indoor unit
PCB?
Connect the
Short-circuit
connector.
Connect the
Short-circuit
connector.
Set to
"emergency"
and check the
voltage of
X25A.
Replace the
drain pump.
Remove the float switch from
X15A, short-circuit X15A, and
restart operation.
Replace indoor
unit PCB.
There is a
malfunction of the
drain system.
Replace float
switch.
Replace the
indoor unit PCB.
Connect
float
switch
Connect
the drain
pump.
Replace
indoor unit
PCB.
Check the continuity of the
short-circuit connector.
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
No
No
No
No
No
No
No
Yes
ESIE05-03.book Page 44 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...