Grundig GIN 090, Installation Manual

Page: 135 / 168

Split-type room air conditioner / User Manual
23 / 28 EN
Problem Possible causes solution
The unit starts and
stops frequently
There’s too much or too little
refrigerant in the system
Check for leaks and recharge the
system with refrigerant.
Incompressible gas or moisture
has entered the system.
Evacuate and recharge the system
with refrigerant
The compressor is broken Replace the compressor
The voltage is too high or too low
Install a manostat to regulate the
voltage
Poor heating
performance
The outdoor temperature is
exetremtly low
Use auxiliary heating device
Cold air is entering through doors
and windows
Make sure that all doors and
windows are closed during use
Low refrigerant due to leak or
long-term use
Check for leaks, re-seal if
necessary and top off refrigerant
Indicator lamps
continue flashing
The unit may stop operation or continue to run safely. If the indicator
lamps continue to flash or error codes appear, wait for about
10 minutes. The problem may resolve itself.
If not, disconnect the power, then connect it again. Turn the unit on.
If the problem persists, disconnect the power and contact your nearest
customer service center.
Error code appears in
the window display
of indoor unit:
• E0, E1, E2…
• P1, P2, P3…
• F1, F2, F3…
C
Note: If your problem persists after performing the checks and diagnostics above, turn off
your unit immediately and contact an authorized service center.
5 Troubleshooting