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ESIE05-03
Troubleshooting
Part 3 – Troubleshooting
3–17
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.
Wait for a while.
No abnormality
No abnormality
Additional unit installation
should be considered
After vacuum drying, charge
correct amount of refrigerant.
Check each item
Check each item
Check each item
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
(S1995)
NO
Measure the temperature of
suction air and supply air.
Temperature difference =
Suction air temp. – Supply air
temp.
* Incorrect selection of model
* Affection of sunlight
* Affection of excessive fresh
air into room
Gas shortage possibly
generates trouble.
* Clogged air filter
* Soiled heat exchanger
* Malfunction of indoor fan
motor
(Refer error code “A6”)
* Refrigerant overcharge
* Soiled heat exchanger
* Short circuit of discharge air
* Disturbing item in air flow
* Malfunction of fan motor of
outdoor unit
(Refer error code “E7”.)
Does
the heat load
increase after installation
of the unit?
Is the unit in
defrost mode?
Is
the operation
current less than specified
level?
Does
indoor unit air flow
rate down?
Temperature
difference for heating
should be between 14
and 30˚C.
Is this
first starting after
installation?
* Insufficient compression of
compressor
* Insufficient circulation of
refrigerant
* Faulty expansion valve
Is the
level of high
pressure lower than
normal level?
This is normal. Heating
operation will be conducted
after 2 or 3 minutes.
See page 2-15 "Test Run
Control" for details.
ESIE05-03.book Page 17 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...