18
Troubleshooting Guide - Advance Split Ducted Unit
Doc. 9590-2015-03 Ver. 3 221111
Troubleshooting Guide
Advance Split Ducted Unit
NEO
Wall
Controller
LR7-1 /LC7-2
Wall
Controller
Outdoor
Unit
CPU
Category /
Source
Function / Fault
E01
E01
E01
IDU
Indoor Fan RPM Feedback Error
E03
E03
E03
IDU
Indoor Room Temp. Sensor Error (Open or short circuit)
E04
E04
E04
IDU
Indoor Coil IN Temp. Sensor Error (open or short circuit)
E06
E06
E06
IDU
High Discharge Temp. (Discharge Temp exceeded 120°C)
E07
E07
E07
ODU
Outdoor Coil Temp. Sensor Error (Open or short circuit)
E08
E08
E08
ODU
Discharge Temp. Sensor Error (Open or short circuit)
E09
E09
E09
ODU
LP Switch Tripped
E10
E10
E10
ODU
LP Sensor Error (Open/short circuit)
E11
E11
E11
ODU
HP Switch Tripped
E12
E12
E12
ODU
HP Sensor Error (Open/short circuit)
E13*
E13*
E13*
ODU
VSD HSP Connector (Jumper Pin Missing)
VSD Fault Signal
E15
E15
E15
ODU / VSD
Communication Error Between ODU to VSD
E18
E18
E18
ODU
Suction Temp. Sensor Error (Open/short circuit)
E22
E22
E22
ODU
Ambient Temp. Sensor Error (Open/short circuit)
E26
E26
E26
VSD
VSD Supply Over Current
E27
E27
E27
VSD
VSD Supply Over Voltage
E28
E28
E28
VSD
VSD Temperature High
E29
E29
E29
VSD
VSD Low Supply Voltage
E30
E30
E30
VSD
VSD Trip Lock
E41
E41
E41
VSD
VSD DC Link Voltage Low
E42
E42
E42
ODU
Envelope Protection Error
(Extreme Low Evaporating Pressure)
E43
E43
E43
ODU
Envelope Protection Error (High compression ratio)
E44
E44
E44
ODU
Envelope Protection Error (High condensing pressure)
E45
E45
E45
ODU
Envelope Protection Error (Low compression ratio)
E47
E47
E47
ODU
Compressor Torque Limit Error
E50
E50
E50
ODU
Outdoor Board Configuration Error
E51
E51
E51
IDU / ODU
Communication Error Between Outdoor to Indoor Unit
E52
E52
E52
CMI / ODU
Communication Error Between Indoor Unit to Wall controller
E55
E55
E55
ODU
Communication Error Between BMS to ODU
E56
E56
E56
VSD
No Master Wall Controller Detected
E60
E60
E60
VSD
VSD Compressor Phase Over Current
E61
E61
E61
VSD
VSD Compressor Loss of Phase
E62
E62
E62
VSD
VSD DC Bus Over Voltage
* Applicable only for Advance R-410A (Uno Board), ** Applicable only for Advance R-32 (Uno Pro Board)