5
Troubleshooting
Problem
The unit starts and
stops frequently
Poor heating
performance
Indicator lamps
continue flashing
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.
Split-type room air conditioner / User Manual
Possible causes
There's too much or too little
refrigerant in the system
Incompressible gas or moisture
has entered the system.
The compressor is broken
The voltage is too high or too low
The outdoor temperature is
exetremtly low
Cold air is entering through doors
and windows
Low refrigerant due to leak or
long-term use
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.
solution
Check for leaks and recharge the
system with refrigerant.
Evacuate and recharge the system
with refrigerant
Replace the compressor
Install a manostat to regulate the
voltage
Use auxiliary heating device
Make sure that all doors and
windows are closed during use
Check for leaks, re-seal if
necessary and top off refrigerant
23 / 136 EN