17
Problem
Possible causes
Solution
The unit is not working
Power failure
Wait for the power to be
restored
The power is turned off
Turn on the power
The fuse is burned out
Replace the fuse
Remote control batteries
are dead
Replace batteries
The Unit’s 3-minute
protection
has been activated
Wait three minutes after
restarting the unit
Timer is activated
Turn timer off
Poor heating performance The outdoor temperature
is extremely 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…
NOTE: If your problem persists after performing the checks and diagnostics above,
turn off your unit immediately and contact an authorized service center.
