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Troubleshooting Guide - Advance Split Ducted Unit
Doc. 9590-2015-03 Ver. 3 221111
Troubleshooting Guide
Advance Split Ducted Unit
High Pressure Transducer
Low Pressure Transducer
Pressure (Kpa)
Output Voltage
(VDC)
Pressure (Kpa)
Output Voltage
(VDC)
4125
3.8
1650
3.8
4375
4
1750
4
4625
4.2
1850
4.2
4875
4.4
1950
4.4
5125
4.6
2050
4.6
5375
4.8
2150
4.8
5625
5
2250
5
05. Fault and Status Codes
05.01. Status Codes
05.02. Fault Codes
05.03. Fault Code Troubleshooting
Fault Code
Description
Possible Causes
Remedies
E03 Indoor Room
Temp. Sensor
Error
E03 will be displayed on all connected wall
controls every time the unit is switched on.
Faulty wall sensor or cable
Replace faulty sensor or
cable
E04 Indoor Coil
In Temp. Sensor
Error
No preheat on start up (heating mode only),
indoor fan will come on straight away.
Indoor coil sensor is open or
short circuit.
Replace indoor sensor
After de-ice, indoor fan will start after 30
seconds.
E04 will be displayed every time it is switched
on.
E06 High
Discharge
Temperature
The compressor discharge temperature (Cdt)
has exceeded 138˚C and the system has been
stopped. When the temperature has normalised
to 80˚C or 8 minutes delay has been finished,
the controller will attempt to return to normal
conditions.
Under charged with
refrigerant.
Check for refrigerant leaks
and repair.
E07 Outdoor Coil
Temp. Sensor
Error
Outdoor fans will operate on high speed only
(while unit is running).
Outdoor coil sensor is open
or short circuit.
Replace outdoor coil sensor
E07 will be displayed every time the system is
switched on.
Faulty sensor.
Check the sensor resistance.
E08 Discharge
Temp. Sensor
Error
The reading of the discharge temperature
sensor (Cdt) is not within the specified sensor
range of -60 °C to +200°C.
Discharge temperature
sensor is open or short
circuit.
Replace discharge
temperature sensor.
Faulty sensor.
Check the sensor resistance.
