Error Codes: System Malfunctions
ESIE02–01
3–54
Part 3 – Troubleshooting
3
1
3
4
5
4.2
Gas Shortage Detection (
U0
)
Error code
U0
LED indication
The table below shows the LED indication.
Error method
The discharge pipe thermistor detects the malfunction temperature at which there can be a gas
shortage. If the discharge temperature exceeds 125˚C during more than 20 s, the outdoor unit will stop
and retry when the guard timer is OFF (3 min have passed).
During the retrial, the expansion valve will be opened 90 pulses more than in case of the previous start.
When the unit restarts with a fully opened expansion valve, the remote control displays “U0” after
pressing the test button.
Error generation
The error is generated when the microcomputer detects gas shortage. However, the unit can still
operate.
Causes
The possible causes are:
■
Refrigerant shortage
■
Clogging of the refrigerant piping circuit.
Troubleshooting
To troubleshoot, proceed as follows:
Operation
HAP (green)
H1P (red)
H2P (red)
Normal
6
8
8
Malfunctioning
—
—
—
Check the amount of
refrigerant.
No
Is it correct?
Fill with the proper
amount of refrigerant.
Ÿ
Check the refrigerant piping
circuit for clogging.
Ÿ
Check the expansion valve.
Refer to error
E9
.
Ÿ
Check the discharge thermistor.
Refer to error
F3
.
Yes
Содержание Sky Air R-407C
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Страница 16: ...Introduction ESIE02 01 xii 3 1 4 5...
Страница 18: ...ESIE02 01 1 2 Part 1 System Outline 3 1 1 5...
Страница 42: ...General Outline Outdoor Units ESIE02 01 1 26 Part 1 System Outline 3 1 1 4 5...
Страница 49: ...ESIE02 01 General Outline Indoor Units Part 1 System Outline 1 33 3 1 4 5...
Страница 72: ...General Outline Indoor Units ESIE02 01 1 56 Part 1 System Outline 3 1 1 4 5...
Страница 86: ...Specifications ESIE02 01 1 70 Part 1 System Outline 3 1 1 4 5...
Страница 110: ...ESIE02 01 1 94 Part 1 System Outline...
Страница 130: ...Switch Box Layout ESIE02 01 1 114 Part 1 System Outline 3 1 1 4 5...
Страница 180: ...PCB Layout ESIE02 01 1 164 Part 1 System Outline 3 1 1 4 5...
Страница 182: ...ESIE02 01 2 2 Part 2 Functional Description 3 1 2 5...
Страница 204: ...General Functionality ESIE02 01 2 24 Part 2 Functional Description 3 1 2 4 5...
Страница 216: ...Overview of the cooling mode functions ESIE02 01 2 36 Part 2 Functional Description 3 1 2 4 5...
Страница 232: ...ESIE02 01 3 2 Part 3 Troubleshooting 3 1 3 5...
Страница 294: ...Error Codes System Malfunctions ESIE02 01 3 64 Part 3 Troubleshooting 3 1 3 4 5...