Airwell PNX DCI Nordic, Руководство по обслуживанию

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12-1
TROUBLESHOOTING
SM PNXDCI 1-A.1 GB
12. TROUBLESHOOTING
12.1 Troubleshooting GC 9 DCI Nordic, GC 12 DCI Nordic
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!!!
12.1.1 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 and follow
the actions described.
7
Compressor stops during
operation and Green LED
remains on
Electronic control or
power supply problem Perform diagnostics and follow
the actions described.
8
Compressor is on but
outdoor fan does not work Problem with outdoor
electronics or outdoor fan
Check outdoor fan motor
according to the procedure below,
if not OK replace controller.