Troubleshooting | 17
Owner’s Manual
6 720 869 160 (2016/12)
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
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 lower than
7°C (44.5°F)
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.
