Table 10-1 Error Codes - Emerson Liebert SRC18 User Manual

Troubleshooting
Error
Unit No.
1 Indoor unit room-temperature sensor error
2 Indoor unit inlet pipe sensor error
3 Wired remote-control error
4 Float switch (optional) error
Indoor 5 Communication error between indoor and outdoor unit
6 Indoor unit outlet-pipe sensor error
9 Indoor unit EEPROM error
10 Indoor unit BLDC motor fan lock
12 Indoor unit middle pipe sensor error
21 DC Peak (IPM fault)
22 CT 2 (Max CT)
23 DC Link Low/High Volt
26 DC Comp Position Error
27 PSC Fault
29 Comp Phase Over-current
32 Invert Compressor D-pipe Overheat
38 Refrigerant Leak detection
37 Exceed the Compression Ration Limit
41 D-pipe Sensor Error
Outdoor 44 Outdoor Air Sensor Error
45 Cond. Out Pipe High
51 Excess Capacity (Mismatching between In/Outdoor unit)
53 Communication Error (IN-OUT)
60 Outdoor EEPROM Check sum error
61 Cond. Pipe High
62 Heat Sink Sensor Temp. High
65 Heat sink Th Error (open/short)
67 BLDC Motor Fan Lock
72 Detect 4 Way Valve Transfer Failure
93 Communication Error (IN-OUT)
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Liebert SRC User Manual

Table 10-1 Error Codes

Description
108
SRC18 LED blinks
Indoor
LED 1
Unit
LED 2
nd st
LED
(2 digit) (1 digit)
 1x —
 2x —
3x —

 4x —
 5x —
 6x —
 9x —
 — 1x
 2x 1x
 1x 2x
2x 2x

 3x 2x
 6x 2x
 7x 2x
 9x 2x
 2x 3x
 8x 3x
 7x 3x
1x 4x

 4x 4x
 8x 4x
 1x 5x
 3x 5x
 — 6x
 1x 6x
 2x 6x
5x 6x

 7x 6x
 2x 7x
 3x 9x
SRC24 and
SRC36
displays
CH01
CH02
CH03
CH04
CH05
CH06
CH09
CH10
CH12
CH21
CH22
CH23
CH26
CH27
CH29
CH32
CH38
CH37
CH41
CH44
CH45
CH51
CH53
CH60
CH61
CH62
CH65
CH67
CH72
CH93