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Troubleshooting
ESIE02–01
3–4
Part 3 – Troubleshooting
3
1
3
4
5
1.2
Overview of General Problems
Introduction
The general problems are:
■
None of the indoor units operates
■
Equipment operates but stops sometimes
■
Some indoor units do not operate (twin / triple)
■
Equipment operates but is not able to cool
■
Abnormal operating noise and vibrations
■
Equipment does not operate (operation light OFF)
■
Poor cooling or heating
■
Operation stops suddenly (operation light flashes)
■
Abnormal functioning.
None of the indoor
units operates
To troubleshoot, check the following:
■
Make sure the rated voltage is supplied.
■
Make sure the indoor unit type is compatible with the outdoor unit.
■
Troubleshoot with the indoor unit LEDs. See page 3–11.
■
Troubleshoot with the outdoor unit LEDs. See page 3–12 and 3–13.
■
Make sure the address for the remote control and indoor unit are set correctly. See page 4–5.
Equipment
operates but stops
sometimes
To troubleshoot, check the following:
■
A power failure of 2 to 10 sine wave cycles can stop air conditioner operation.
■
Cooling operation cannot be used when the outside temperature is below 0˚C.
■
Troubleshoot with the indoor unit LEDs. See page 3–11.
■
Troubleshoot with the outdoor unit LEDs. See page 3–12 and 3–13.
Some indoor units
do not operate
(twin / triple)
To troubleshoot, check the following:
■
Make sure the indoor unit type is compatible with the outdoor unit.
■
Troubleshoot with the indoor unit LEDs. See page 3–11.
■
Troubleshoot with the outdoor unit LEDs. See page 3–12 and 3–13.
Equipment
operates but is not
able to cool
To troubleshoot, check the following:
■
Make sure the thermistor has not disconnected from the pipe holder.
■
Troubleshoot with the indoor unit LEDs. See page 3–11.
■
Troubleshoot with the outdoor unit LEDs. See page 3–12 and 3–13.
■
Check for gas shortage. See page 3–54.
Summary of Contents for Sky Air R-407C
Page 1: ...ESIE02 01 Service Manual Sky Air R 407C B series SV p p p...
Page 2: ......
Page 3: ...ESIE02 01 Service Manual Sky Air R 407C B series SV p p p...
Page 4: ......
Page 16: ...Introduction ESIE02 01 xii 3 1 4 5...
Page 18: ...ESIE02 01 1 2 Part 1 System Outline 3 1 1 5...
Page 42: ...General Outline Outdoor Units ESIE02 01 1 26 Part 1 System Outline 3 1 1 4 5...
Page 49: ...ESIE02 01 General Outline Indoor Units Part 1 System Outline 1 33 3 1 4 5...
Page 72: ...General Outline Indoor Units ESIE02 01 1 56 Part 1 System Outline 3 1 1 4 5...
Page 86: ...Specifications ESIE02 01 1 70 Part 1 System Outline 3 1 1 4 5...
Page 110: ...ESIE02 01 1 94 Part 1 System Outline...
Page 130: ...Switch Box Layout ESIE02 01 1 114 Part 1 System Outline 3 1 1 4 5...
Page 180: ...PCB Layout ESIE02 01 1 164 Part 1 System Outline 3 1 1 4 5...
Page 182: ...ESIE02 01 2 2 Part 2 Functional Description 3 1 2 5...
Page 204: ...General Functionality ESIE02 01 2 24 Part 2 Functional Description 3 1 2 4 5...
Page 216: ...Overview of the cooling mode functions ESIE02 01 2 36 Part 2 Functional Description 3 1 2 4 5...
Page 232: ...ESIE02 01 3 2 Part 3 Troubleshooting 3 1 3 5...
Page 294: ...Error Codes System Malfunctions ESIE02 01 3 64 Part 3 Troubleshooting 3 1 3 4 5...