Airwell GC 12 DCI User Manual

11-1
TROUBLESHOOTING
SM SX DCI 1-A.3 GB
11. TROUBLESHOOTING
WARNING!!!
When Power Up – the whole outdoor unit controller, including the wiring, is under
HIGH VOLTAGE!!!
Never open the Outdoor unit before turning off the Power!!!
When turned off, the system is still charged (400V)!!!
It takes about 3 Min. to discharge the system.
Touching the controller before discharging may cause an electrical shock!!!
For safe handling of the controller please refer to section 11.6 below.
11.1 General DCI Single Split System failures and Corrective Actions
No SYMPTOM
PROBABLE
CAUSE
CORRECTIVE ACTION
1
Power supply indicator (Red
LED) does not light up.
No power supply
Check power supply. If power supply
is OK, check display and display
wiring. if OK, replace controller.
2
Unit does not respond to
remote control message
Remote control
message not reached
the indoor unit
Check remote control batteries, if
batteries are OK, check display and
display wiring, if OK, replace display
PCB.
If still not OK replace controller.
3
Unit responds to remote
control message but Operate
indicator (Green LED) does
not light up
Problem with display
PCB
Replace display PCB.
If still not OK replace controller.
4
Indoor fan does not start
(louvers are opened and
Green LED does light up)
Unit in heat mode and
coil is still not warm.
Change to cool mode and check.
Problem with PCB or
capacitor
Change to high speed and Check
power supply to motor is higher than
130VAC (for triack controlled motor)
or higher than 220VAC for fixed speed
motors, if OK replace capacitor, if not
OK replace controller
5
Indoor fan works when unit
is OFF, and indoor fan speed
is not changed by remote
control command.
PCB problem Replace controller
6 Compressor does not start
Electronics control
problem or protection
Perform diagnostics (See 11.3), and
follow the actions described.
7
Compressor stops during
operation and Green LED
remains on
Electronic control
or power supply
problem
Perform diagnostics (See 11.3), and
follow the actions described.
CONTENT

Airwell GC 12 DCI Specifications

General

Brand	Airwell
Model	GC 12 DCI
Category	Heat Pump
Language	English