ESIE05-03
Error Codes: System Malfunctions
Part 3 – Troubleshooting
3–97
3
3
4
5
1
Troubleshooting 2
Caution
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Turn OFF the power supply
once and then ON again.
Is the HAP blinking?
Is the HAP blinking?
Is the HAP ON?
Is the HAP
blinking?
Does
the resistance
between VCC and
UVW, GND-UVW of the
signal line keep the
balance?
"U4" is displayed
at all times.
Turn OFF the power supply
and disconnect No.3 wire of
the Indoor-Outdoor connection
wiring, and then turn ON the
power supply again.
From the preceding page
Check the connector of
the fan motor
Faulty indoor unit PC board.
External factors (e.g. noises)
are supposed.
Malfunction in the power
supply system or faulty
outdoor unit PC board.
Faulty indoor unit PC board.
Replace the fan motor.
YES
NO
NO
NO
YES
YES
NO
Faulty outdoor unit PC board.
YES
Reset to normal.
External factors (e.g. noises)
are supposed.
YES
NO (OFF)
NO (ON or OFF)
YES
Check the normal
HAP of the
microcomputer
for outdoor unit.
ESIE05-03.book Page 97 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...