ActronAir CRV140S User manual

IMPORTANT NOTE:
Please read this manual carefully before installing or operating your air conditioning unit.
That’s better. That’s Actron.
ADVANCE
Split Ducted Unit
Troubleshooting Guide
Model Numbers
R-410A R-32
CRV140S CRV13AS
CRV160S CRV15AS
CRV180S CRV17AS
CRV160T CRV13AT
CRV180T CRV15AT
CRV210T CRV17AT
CRV240T
Model shown is R-410A

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Troubleshooting Guide Advance Split Ducted Unit
Table of Contents
01. General Troubleshooting .................................................................................................... 3
02. EC Fan Troubleshooting ......................................................................................................4
03. Indoor Fan PWM and RPM Limits Table................................................................................ 6
. Advance R-A (UNO Board)....................................................................................... 
. Advance R- (UNO-Pro Board) ....................................................................................
04. Component Troubleshooting.............................................................................................. 7
. Testing Indoor Board...................................................................................................... 
. Expected Control Voltage On Communication Line - InZone Board (R-A / R-) ..
. Expected Control Voltage On Communication Line - UNO Board Series (R-A) ...... 
. Expected Voltage - InZone PCB To Indoor Fan.............................................................
. Compressor Winding Resistance..................................................................................
. Condenser Fan Winding Resistance .............................................................................
. Other Component Coil Resistances .............................................................................
. EEV Resistance .............................................................................................................
. Temperature-Resistance Table For Sensors .................................................................
. Pressure-Voltage Table For Pressure Transducers ........................................................
05. Fault and Status Codes ....................................................................................................... 21
. Status Codes.................................................................................................................
. Fault Codes...................................................................................................................
. Fault Code Troubleshooting.........................................................................................

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01. General Troubleshooting
Fault Possible Causes Remedies
The system does not start.
Built-in safety timers have been activated. Allow up to 5 minutes for the system to start
from when it is turned on.
A circuit breaker may have tripped. Check circuit breakers.
The thermostat setpoint is incorrect. Lower the set point on cooling or raise it on
heating modes.
The master wall control timer is set. Check the wall control timer settings.
No airflow from the outlets.
During heating operation, the hot start function
may have been activated.
During heating operation, the indoor fan is
delayed for 30 seconds or until the indoor coil
reaches 25oC (whichever occur first). This is to
prevent cold drafts.
The system may be operating in a defrost
cycle during the heating cycle. (LR7 will display
DEFROST. NEO will display Defrosting.)
This is normal operation during the defrost
cycle to prevent cold air being blown into
rooms.
Cooling/Heating is not sufficient.
The return air filter may be dirty. Clean the return air filter.
The outdoor unit may have an obstruction on
the air inlet or outlet.
Ensure the air inlet and air outlet on the
outdoor unit is not blocked.
Check that the area around the outdoor unit
is free from obstructions that may cause the
airflow to recirculate.
The airflow across the indoor coil may be
outside of the operating range.
Reduce the total static pressure of the
ductwork. For example increase duct sizes,
reduce tight duct work bends or increase
return air grille size.
The heat load is greater than the installation
design.
Perform a heat load analysis on the
conditioned space. Turn any unused zones to
the off position.
Windows or doors are open. Close windows and doors in conditioned areas.
The outside temperature is beyond the air
conditioner design conditions.
When the ambient temperature is expected
to exceed the maximum design operating
temperature, turn the system on as early as
possible.
The indoor fan setting may be set too low. Change the fan speed to a higher setting. This
will increase system capacity.
Steam emitted from outdoor unit.
The outdoor unit is going through a defrost
cycle during the heating cycle.
This is normal during the defrost operation in
cold ambient conditions.
Condensation of water on the outdoor coil
during heating operation.
This is normal during heating operation.
Optional drip trays can be purchased to drain
the excess water.
Set temperature cannot be
adjusted.
The wall control set temperature limits are being
exceeded.
Check the upper and lower temperature limits
are set correctly.
Occasional hissing noise can be
heard during the heating cycle.
This is the sound of the gas changing direction
as the system goes through a defrost cycle.
This is a normal function of an air conditioner.
The compressor is operating but
the system is not cooling.
You are in heating mode. Check the temperature settings.
The reversing valve has not switched between
heating and cooling.
Test reversing valve.

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Fault Possible Causes Remedies
The outdoor coil keeps freezing
over.
Faulty outdoor coil sensor Check the sensor resistance.
Jammed reversing valve. Test the reversing valve operation.
Obstruction on the outdoor unit. Remove obstructions.
There is only one condenser fan
working.
Faulty fan motor. Test the fan motor resistance.
Faulty capacitor. Test the capacitor microfarad reading.
Faulty Outdoor PCB. Test the PCB output voltage.
Compressor won’t operate at
100% capacity.
You can adjust your wall control temperature
so you have a large differential. This will operate
the system at 100% until the temperature gets
to within 4oC of the setpoint.
Note:
If the system operates under Anti Freeze or
Overheat Protection the system will not operate
at 100% capacity
Adjust the set point less then or greater than
4oC of the indoor temperature depending on
mode of operation.
Odour in the conditioned space
when the A/C is turned on.
Indoor unit has absorbed the conditioned space
smells eg. cigarette, cooking, etc.
If this happens, we recommend you have the
indoor unit washed by a technician. Consult
the installer from whom you purchased the air
conditioner.
No P-Trap installed. Re-pipe drain with a P-Trap.
Dry P-Trap. Contact the installer to carry out a general
service and fill the P-Trap.
02. EC Fan Troubleshooting
Fault Sequence of Events Possible Causes Remedies
1. Auto Mode is not
available.
When scrolling through fan
speeds, Auto Mode is not
selectable.
During commissioning,
Self-Learn mode was not
activated.
Carry out self learn mode. Refer LR7/LC7/
NEO controller operation manual.
Self learn mode failed during
commissioning.
Ensure that the air is balanced correctly
(static may be too high). Refer to
Installation and Commissioning
Guide-Indoor.
2. Airflow hunting during
Auto and Self Learn
Mode.
Indoor fan will intermittently
“huff”.
Excessive static in ductwork.
Duct static has changed since
performing a self-learn. Ducts
deteriorate, dirty filter, change
in duct layout.
Reduce static where possible.
See installation guidelines on duct
installation.
Clean filter and re-perform self-learn.
3. Too much airflow when
minimum zones are on.
Air is blowing too much when
set to minimum zones.
Fan not set to Auto Mode. Change fan setting to Auto Mode
Poor air balance. Carry out air balance and install manual
dampers as required.
Minimum duct and outlet sizes
requirements not followed.
Check Installation and Commissioning
Guide-Indoor and adjust / change if
necessary.

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Fault Sequence of Events Possible Causes Remedies
4.Low airflow during
AUTO Mode.
System produces reduced
airflow on Auto mode when all
or minimum zones are on.
System capacity has been
designed to heat/cool only
selected areas of the conditions
space at any one time.
Operate indoor fan on Low/ Med/High
speed to achieve more airflow.
Excessive static in ductwork. Reduce static where possible.
Review duct design with reference to
Installation and Commissioning
Guide-Indoor.
5. Indoor fan not changing
speeds when in Auto
Mode
When zones are switched on
or off, airflow to active zones
doesn’t increase or decrease.
There is excessive static within
the duct design of the active
zones.
Review duct design with reference to
Installation and Commissioning
Guide-Indoor.
The indoor PCB is not changing
the fan PWM to adjust the fan
PWM to adjust the fan speed.
Check the output PWM from indoor PCB.
An increase in fan speed should result in
a increase in the fan % PWM (duty cycle).
Refer to table below test points expected
voltages.
To determine if the system may be
suffering from excessive or insufficient
static, check PWM & RPM values through
the indoor unit dashboard on the Master
Wall Controller:
• If the RPM is at its maximum value, and
the PWM has not reached its requested
value, this indicates a high static.
(Please refer to RPM Limits in Section
0.3)
• When switching off zones, and there
is little or no change in the RPM value,
this indicates insufficient static within
remaining active zones duct work.
6. HiS is displayed on the
wall controller after
a Self-Learn has been
preformed (L Series
Controller only).
System produces low airflow
when AUTO mode is selected
regardless of how many zones
are open.
HiS is displayed on the wall
control as a indication of very
high static in the connected
return and supply duct which
can further effect the supply
air quantity during the auto
mode. If there is too much
static during self-learn, then
the controller will automatically
decrease the indoor fan speed
until an acceptable static is
achieved and the self-learn can
be completed with reduced
airflow.
Reduce static where possible. Review
duct design with reference to Installation
and Commissioning Guide - Indoor .
Once static has been reduced perform
Self-Learn again.

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03. Indoor Fan PWM and RPM Limits Table
03.01. Advance R-410A (UNO Board)
Unit Model PWM % (Approx)
Low Medium High
EVV140S 35 47 60
EVV160S 42 58 77
EVV180S 50 69 99
EVV210S 43 61 82
EVV240S 44 62 84
Unit Model RPM Limits
Low Medium High
EVV140S 1150 1290 1390
EVV160S 1150 1290 1390
EVV180S 1150 1290 1390
EVV210S 1150 1350 1500
EVV240S 1150 1350 1500
03.02. Advance R-32 (UNO-Pro Board)
Unit Model PWM % (Approx)
Low Medium High
EVV13AS 40 50 64
EVV15AS 52 64 73
EVV17AS 57 73 99
Unit Model RPM Limits
Low Medium High
EVV13AS 1380 1380 1380
EVV15AS 1380 1380 1380
EVV17AS 1380 1380 1380

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04. Component Troubleshooting
04.01. Testing Indoor Board
1. Disconnect wires from the Wall Control Communication and Outdoor Communication plugs into indoor
board
2. Loop the “A” terminal from the Wall Control communication plug to the “A” terminal on the Outdoor
Communication Plug
3. Loop the “B” Terminal from the Wall Control communication plug to the “B” terminal on the Outdoor
Communication Plug
4. Power the board and if the WCCOM2 LED flashes and the OUTDOORCOM1 flashes then the indoor board is
communicating.

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04.02. Expected Control Voltage On Communication Line - InZone Board (R-410A / R-32)
NOTES
• If COM1 (LED1) and COM2 (LED2) are blinking, communication is occurring.
• * Voltage sending between A-G and B-G are fluctuating, this means communication is occurring.
• Prior to measuring the control voltage ensure communication wires are properly connected to the CPU
board.
ZONE 8
ZONE 7
ZONE 6
ZONE 5
ZONE 4
ZONE 3
ZONE 2
ZONE 1
COM1
LED1
COM2
LED2
COM3
LED3
PWR
LED4
*VDC VALUES
UNO Board: 0.4 - 3 VDC
UNO Pro Board: 1 - 3 VDC
VDC*
VDC*
04.03. Expected Control Voltage On Communication Line - UNO Board Series (R-410A)
CONDENSER CPU BOARD
SMPS 240VAC/12VDC
FAN POWER 2
240V AC
FAN POWER 1
240V AC
A
A
N
N
FAN
CAP H
FAN
CAP M
FAN
CAP L
AMB
SENSOR
OUTPUT
0-10V G
REMOTE
ON/OFF
G 12V
+12V
COM
DRM3
COMP
DRM2
FAN
DRM1
HEAT COIL
TEMP
HP
SENSOR
LP
SENSOR
HP
SW
LP
SW
RUN FAULT N PFC N COMP N PWM N CCH N REV
COM
LQD
HEAT
LQD
COOL
DLT
TEMP
SCT
TEMP
AUX 485
12V A B G
INDOOR 485
A B G VSD 485
A B G
OCB
FUSE
250V AC 10 A
SLOW BLOW
SIZE 5 x 20mm
MENUENTER
BACK
DISPLAY
A
N
MAINS
POWER
AC/L
AC/N
V-
V+
COM 1COM 2COM 3
PWR
SW1
PROG
EXV
0-10V
INPUT
G
LED 1
LED 2
LED 3
A
0.4 - 3 VDC*
GG B
1 - 3.2VDC*
AGBG
0.4 - 3 VDC*
1 - 3.2VDC*
FAN
CAP H
FAN
CAP M
FAN
CAP L

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04.03.0.01. Expected Control Voltage On Communication Line - UNO Pro Board (R-32)
INDOOR 485 VSD
A B G +5V A B G
485
1 - 3 VDC 1 - 3 VDC
1 - 3.2 VDC 1 - 3.2 VDC
AGAG
AGAG

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04.04. Expected Voltage - InZone PCB To Indoor Fan
INDOOR CPU BOARD
(EVAPORATOR)
FAN POWER
240VAC
TX
AUX
240VAC COM
COM
12V
0-10V
12V
S1
0-10V COM 0-10V COM
A
S2
B
S3
G
COM
A
A
B
B
G
G
COIL
TEMP
INDOOR FAN
24VAC
TX
PWM
INDOOR
FAN
OUTDOOR
485
AUX
485
WALL
CONTROLLER
TEMP
SENSORS
AUX
OUT
AUX
IN
ICB
MASTER
WALL CONTROLLER
SECONDARY
MAINS
SMPS 240VAC/12VDC
AC/L
AC/N
V-
V+
A
N
IF-1
1 EC
ECM
CONTROL
MODULE
INDOOR FAN (IF)
INTERNAL AUTO RESET
OVERLOAD PROTECTION
WALL CONTROLLER
ZONE 8
ZONE 7
ZONE 6
ZONE 5
ZONE 4
ZONE 3
ZONE 2
ZONE 1
Step 1.
1. Measure the Indoor Fan on/off signal.
On signal = 12VDC signal between Pin 1 and 3 (red and blue wires).
Off signal = +0VDC signal between Pin 1 and 3.
Step 2.
1. Set the tester to measure duty cycle .
2. Set the indoor fan to a fixed speed eg High & turn all zones on.
3. Measure the reading between Pin 3 and 4 (blue and yellow wires).
4. Change fan speed and check for any changes in readings.
5. Compare the duty cycle output to the expected PWM for each model.
NOTE
Duty cycle cannot be tested in voltage. A voltage on the PWM line indicates a Duty Cycle is present.

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04.05. Compressor Winding Resistance
COMPRESSOR WINDINGS
SINGLE PHASE
U
WV
Unit Model Compressor
Part Number/Model
Rating Of Compressor Windings (Ω)*
U - V V - W U - W
R-410A
CRV140S
1560-476 0.338 0.338 0.338CRV160S
CRV180S
CRV160T
1560-474 0.521 0.521 0.521
CRV180T
CRV210T
1560-475 0.610 0.610 0.610
CRV240T
R-32
CRV13AS
1560-477 0.345 0.345 0.345CRV15AS
CRV17AS
CRV13AT
1560-478 0.658 0.658 0.658CRV15AT
CRV17AT
*Resistance value at 25 oC ambient Temperature

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04.06. Condenser Fan Winding Resistance
04.06.01. R-410A Models
Unit Model Fan Part Number Rating Of Fan Windings (Ω)*
CRV140S
CRV160S
CRV180S
CRV160T
CRV180T
2505-141
Black and Blue 97
Blue and Brown 143
Black and Brown 240
Any colour and earth Open circuit
CRV210T
CRV240T 2505-130
Brown and Black 68.2
Brown and Blue 38.6
Black and Blue 30.1
Any colour and earth Open circuit
Any colour and either Gray Open circuit
*Resistance value at 25 oC ambient Temperature
04.06.02. R-32 Models
7
六六．．外外形形图图Outline
Outline
Outline
Outline Drawing
Drawing
Drawing
Drawing
注:Note:
1. 电源引线：3×AWG#20 1. Lead wire：3×AWG#20
蓝色线：NBlue：N
棕色线：LBrown：L
黄绿色线：PE Yellow/Green:PE
2. 控制引线：4×AWG#22 2.Control wire:4×AWG#22
红色线：+10VDC 输出 Red：+10VDC Output
黄色线：0~10VDC/PWM Yellow：0~10VDC/PWM
白色线：FG 速度信号输出 White：FG speed diagnostic output
蓝色线：GND Blue：GND
3. 4XM4螺钉,螺纹深度最大值 6mm。3. 4XM4installation screws, max. depth 6mm;
4. 配件:无。 4. Attachment：No。
7
六六．．外外形形图图Outline
Outline
Outline
Outline Drawing
Drawing
Drawing
Drawing
注:Note:
1. 电源引线：3×AWG#20 1. Lead wire：3×AWG#20
蓝色线：NBlue：N
棕色线：LBrown：L
黄绿色线：PE Yellow/Green:PE
2. 控制引线：4×AWG#22 2.Control wire:4×AWG#22
红色线：+10VDC 输出 Red：+10VDC Output
黄色线：0~10VDC/PWM Yellow：0~10VDC/PWM
白色线：FG 速度信号输出 White：FG speed diagnostic output
蓝色线：GND Blue：GND
3. 4XM4螺钉,螺纹深度最大值 6mm。3. 4XM4installation screws, max. depth 6mm;
4. 配件:无。 4. Attachment：No。
Control
Voltage
Fan Data
Wire Colour
Fan Data
Output
PCB JST
XHP-6 Pin
- White Fan
Feedback
1
- Red +10VDC
Supply
2
2 - 10
VDC
Yellow 0 - 10
VDC
3
2 - 10
VDC
Blue 0V
Ground
4
- - - 5
- - - 6
1.5 - 10
VDC
Yellow -
Blue
UNO Pro
to Fan

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04.07. Other Component Coil Resistances
Component Name Resistance Value (KΩ)*
Reversing valve 2.03
Crankcase Heater 1.56
*Resistance value at 25 oC Ambient Temperature
04.08. EEV Resistance
Resistance Between Wires Resistance Value (Ω)*
Orange – Grey 46 ± 3 
Red – Grey 46 ± 3 
Yellow – Grey 46 ± 3 
Black – Grey 46 ± 3 
*Resistance value at 20oC Ambient Temperature
04.09. Temperature-Resistance Table For Sensors
Ambient/Outdoor Coil/
Indoor Coil/Suction
Temperature Sensor
Discharge Line
Temperature Sensor
Temp
(°C)
Resistance
(KΩ)
Resistance
(KΩ)
-20 7 7. 5 1053.9
-19 73.5 992.1
-18 69.7 933.0
-17 66.1 878.0
-16 62.8 827.0
-15 59.6 7 79.6
-14 56.6 734.7
-13 53.8 693.2
-12 51.2 654.0
-11 48.7 61 7.1
-10 46.3 582.5
-9 44.1 550.6
-8 42.0 520.2
-7 40.0 491.8
-6 38.1 465.2
-5 36.3 440.4
-4 34.6 416.9
-3 33.0 394.8
-2 31.5 374.1

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Ambient/Outdoor Coil/
Indoor Coil/Suction
Temperature Sensor
Discharge Line
Temperature Sensor
Temp
(°C)
Resistance
(KΩ)
Resistance
(KΩ)
-1 30.1 354.7
028.7 336.4
127.4 319.0
226.2 302.7
325.0 287.3
423.9 273.0
522.9 259.2
621.9 246.4
721.0 234.3
820.1 222.8
919. 2 212.0
10 18.4 201.8
11 17.6 192.1
12 16.9 183.0
13 16.2 174.3
14 15.5 166.1
15 14.9 158.4
16 14.3 151.1
17 13.7 144.1
18 13.2 137.5
19 12.7 131.3
20 12.2 125.4
21 11.7 119.7
22 11.2 114.4
23 10.8 109.4
24 10.4 104.6
25 10.0 100.0
26 9.6 95.7
27 9.3 91.6
28 8.9 8 7.6
29 8.6 83.9
30 8.3 80.4
31 8.0 7 7.0
32 7.7 73.8
33 7.4 70.7
34 7.1 67.8
35 6.9 65.1

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Ambient/Outdoor Coil/
Indoor Coil/Suction
Temperature Sensor
Discharge Line
Temperature Sensor
Temp
(°C)
Resistance
(KΩ)
Resistance
(KΩ)
36 6.6 62.4
37 6.4 59.9
38 6.2 57.5
39 6.0 55.2
40 5.8 53.0
41 5.6 50.9
42 5.4 48.9
43 5.2 47.0
44 5.0 45.2
45 4.8 43.5
46 4.7 41.8
47 4.5 40.2
48 4.4 38.7
49 4.2 37.3
50 4.1 35.9
51 4.0 34.6
52 3.8 33.3
53 3.7 32.1
54 3.6 30.9
55 3.5 29.8
56 3.4 28.7
57 3.3 2 7.7
58 3.2 26.7
59 3.1 25.8
60 3.0 24.9
61 2.9 24.0
62 2.8 23.2
63 2.7 22.4
64 2.6 21.6
65 2.6 20.9
66 2.5 20.2
67 2.4 19.5
68 2.3 18.8
69 2.3 18.2
70 2.2 17.6
71 2.1 17.0
72 2.1 16.5
73 2.0 15.9
74 2.0 15.4
75 1.9 14.9
76 1.9 14.4

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Ambient/Outdoor Coil/
Indoor Coil/Suction
Temperature Sensor
Discharge Line
Temperature Sensor
Temp
(°C)
Resistance
(KΩ)
Resistance
(KΩ)
77 1.8 14.0
78 1.8 13.5
79 1.7 13.1
80 1.7 12.7
81 1.6 12.3
82 1.6 11.9
83 1.5 11.6
84 1.5 11.2
85 1.5 10.9
86 1.4 10.5
87 1.4 10.2
88 1.3 9.9
89 1.3 9.6
90 1.3 9.3
91 1.2 9.1
92 1.2 8.8
93 1.2 8.5
94 1.1 8.3
95 1.1 8.1
96 1.1 7.8
97 1.1 7.6
98 1.0 7.4
99 1.0 7. 2
100 1.0 7.0
101 1.0 6.8
102 0.9 6.6
103 0.9 6.4
104 0.9 6.2
105 0.9 6.1
106 0.9 5.9
107 0.8 5.7
108 0.8 5.6
109 0.8 5.4
110 0.8 5.3
111 0.8 5.2
112 0.7 5.0
113 0.7 4.9
114 0.7 4.8
115 0.7 4.6
116 0.7 4.5
117 0.7 4.4

17
Troubleshooting Guide - Advance Split Ducted Unit
Doc. 9590-2015-03 Ver. 3 221111
Troubleshooting Guide Advance Split Ducted Unit
Ambient/Outdoor Coil/
Indoor Coil/Suction
Temperature Sensor
Discharge Line
Temperature Sensor
Temp
(°C)
Resistance
(KΩ)
Resistance
(KΩ)
118 0.6 4.3
119 0.6 4.2
120 0.6 4.1
04.10. Pressure-Voltage Table For Pressure Transducers
LR7-1 / LC7-2
Outdoor
Unit
CPU
Category Function / Fault
-Boot Status Unit is starting up
- oFF Status Unit Off or Unit Turning Off (flashing)
COOL CooL Status Unit Cooling Mode or Start Cooling (flashing)
HEAT HEAt Status Unit Heating Mode or Start Heating (flashing)
Defrost Status dEF Status Heating Mode - Defrost
Defrost Status dEF3 Status 3 min to Defrost
Defrost Status dEF2 Status 2 min to Defrost
Defrost Status dEF1 Status 1 min to Defrost
HEAT HEAt Status Heating Mode - Indoor coil pre-heat after defrost
- oiLr Status Oil Return Operation
Energy Saving dr-1 Status Demand Response Management 1
Energy Saving dr-2 Status Demand Response Management 2
Energy Saving dr-3 Status Demand Response Management 3
- ohP Status Unit derating - Overheat Protection Mode
- dtP Status Unit derating - Discharge Temperature Protection Mode
- cPP Status Unit derating - Condenser Pressure Protection Mode
- hSP Status Unit derating - High Suction Pressure Protection Mode
COOL & LOW blink 30s Cool Error Anti Freeze Protection Mode
NOTE
When unit is powered up, “boot” will show in 7 segment display of outdoor board for 30 seconds, followed by normal CPU status
codes.

18 Troubleshooting Guide - Advance Split Ducted Unit
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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)

19
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
E63 E63 E63 VSD VSD DC Bus Under Voltage
E64 E64 E64 VSD VSD Compressor Loss of Rotor
E65 E65 E65 VSD VSD Compressor U Phase Current Sensor Fault
E66* E66* E66* VSD VSD AC Voltage Imbalance / AC Input Loss of Phase
E66* E66* E66* VSD VSD Inverter De-saturation
E68 E68 E68 VSD VSD Compressor V Phase Current Sensor Fault
E69 E69 E69 VSD VSD PFC-IGBT Over Temp
E70 E70 E70 VSD VSD Lost Rotor Position
E71 E71 E71 VSD VSD Motor Temp Sensor Error
E72 E72 E72 VSD VSD Precharge Relay Open
E73 E73 E73 VSD VSD Compressor W Phase Current Sensor Fault
E74 E74 E74 VSD VSD IGBT Over Current
E75 E75 E75 VSD VSD Compressor Phase Current Fold Back Timeout
E76 E76 E76 VSD VSD Power Module Temp. Fold Back Timeout
E77 E77 E77 VSD VSD AC Input Current Fold Back Timeout
E78 E78 E78 VSD VSD PFC-IGBT Temp. Low
E79 E79 E79 VSD VSD IPM Desat Protection/Compressor HW Over Current
E80 E80 E80 VSD VSD Motor Temp High
E81 E81 E81 VSD VSD Board Temp High
E82 E82 E82 VSD VSD Power Module Temp High
E83 E83 E83 VSD VSD PFC-IGBT Temp High
E84 E84 E84 VSD Communication Error in VSD Between DSP to PFC
E85 E85 E85 VSD Communication Error in VSD Between Comms to DSP
E86 E86 E86 VSD Compressor Phase Current Imbalance
E87 E87 E87 VSD VSD 3 Phase PFC Current Imbalance
E88 E88 E88 VSD VSD Micro Electronic or EEPROM Error
E89 E89 E89 VSD VSD Motor Over Speed
E90 E90 E90 VSD VSD Compressor Model Configuration Error
E91 E91 E91 VSD VSD Inverter Temp Imbalance
E92 E92 E92 VSD VSD PFC Temp Imbalance
E93 E93 E93 VSD VSD Motor Temp Low
E94 E94 E94 VSD VSD Board Temp Low
E95 E95 E95 VSD VSD Power Module Temp Low or Sensor
(Open or short circuit)
E96 E96 E96 VSD VSD PFC-IGBT Temp Low
E97 E97 E97 VSD VSD Comms ADC Failure
* Applicable only for Advance R-410A (Uno Board), ** Applicable only for Advance R-32 (Uno Pro Board)

20 Troubleshooting Guide - Advance Split Ducted Unit
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Troubleshooting Guide Advance Split Ducted Unit
Control Voltage 5.0  0.2 VDC
Output Voltage 0.5 TO 4.5 VDC
OUTPUT
VOLTAGE
CONTROL
VOLTAGE
GROUND
HP OR LP
SENSOR /TRANSDUCER
High Pressure Transducer Low Pressure Transducer
Pressure (Kpa) Output Voltage
(VDC)
Pressure (Kpa) Output Voltage
(VDC)
00.5 00.5
125 0.6 50 0.6
375 0.8 150 0.8
625 1 250 1
875 1.2 350 1.2
1125 1.4 450 1.4
1375 1.6 550 1.6
1625 1.8 650 1.8
1875 2 750 2
2125 2.2 850 2.2
2375 2.4 950 2.4
2625 2.6 1050 2.6
2875 2.8 1150 2.8
3125 3 1250 3
3375 3.2 1350 3.2
3625 3.4 1450 3.4
3875 3.6 1550 3.6
NEO
Wall
Controller
LR7-1 /LC7-2
Wall
Controller
Outdoor
Unit
CPU
Category /
Source Function / Fault
E98 E98 E98 VSD VSD PFC / Input Current Sensor Fault
E99 E99 E99 VSD VSD Compressor Overload
E100 E100 E100 VSD VSD PFC Hardware Over Current
E101 E101 E101 VSD VSD PFC Software Over Current
E102 E102 E102 VSD VSD PFC Over Voltage
E103** E103** E103** VSD VSD Power Module Temp Low or Sensor Open fault
E104** E104** E104** VSD VSD Fault Limit Lockout
* Applicable only for Advance R-410A (Uno Board), ** Applicable only for Advance R-32 (Uno Pro Board)
PFC: Power Factor Correction IGBT: Insulated-Gate Bipolar Transistor
DSP: Digital Signal Processor ADC: Analog to Digital Converter