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ESIE02–01
Error Codes: Outdoor Units
Part 3 – Troubleshooting
3–41
3
3
4
5
1
3.4
Abnormal Low Pressure (Detected by the LPS) (
E4
)
Error code
E4
LED indications
The table below shows the LED indications.
Error generation
The error is generated when the low-pressure switch is activated during compressor operation.
Causes
The possible causes are:
■
Malfunctioning refrigerant piping circuit
■
Malfunctioning low-pressure switch
■
Disconnected or broken low-pressure switch harness
■
Malfunctioning low-pressure switch connector connection
■
Malfunctioning outdoor unit PCB.
LPS settings
The table below contains the preset LPS values.
Operation
HAP (green)
H1P (red)
H2P (red)
Normal
6
8
8
Malfunction
6
7
8
Applicable units
Abnormal
Reset
R(Y)P71/100/125/200/250B
< -0.3 bar
> +0.5 bar
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...