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ESIE05-03
Error Codes: Outdoor Units
Part 3 – Troubleshooting
3–81
3
3
4
5
1
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Is
instantaneous voltage
drop generated?
Is the
compressor coil
disconnected or is the
insulation
defective?
Turn the main power supply
off, and then disconnect the
connection between the
compressor and inverter.
Continuity check in the
power transistor (IGBT)
Is the continuity
normal?
Is the stop valve open?
Check the
installation conditions.
Check the power
supply voltage.
Is the
inverter
output voltage
generated approximately
at the same increasing speed
for each phase after
turning on again?
(
∗
) (U-V, V-W,
W-U)
Open the stop valve.
Replace the compressor.
Replace the inverter PC board.
Replace the inverter PC board.
Correct the power supply.
Compressor inspection
Inspect according to the diagnosis
procedure for abnormal noise,
vibration, operating status, etc. of
the compressor.
RZQ71 (1 ~)
RZQ100 ~ 125 (1 ~)
RZQ100 ~ 140 (3 ~)
Instantaneous overcurrent
detection value
32.0A
51.7A
32.3A
YES
NO
NO
YES
YES
NO
∗
Approximate value
NO
YES
NO
YES
∗
When operating compressor
with compressor output line
disconnected, the compressor
stops due to malfunction after
elapsed time of 5 seconds.
Therefore, check the voltage
increase for 5 seconds.
Check 5.9.4
ESIE05-03.book Page 81 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...