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Problem
Possible cause
The unit starts and
There's too much or too little
stops frequently.
refrigerant in the system.
The compressor is broken.
The voltage is too high or too
low.
Poor heating perfor-
The outdoor temperature is
mance.
lower than 7 °C (44,5 °F)
Cold air is entering through
doors and windows.
Low refrigerant due to leak or
long-term use.
Indicator lamps con-
The unit may stop operation or continue to run safely. If the indicator
tinue flashing.
lamps continue to flash or error codes appear, wait for about 10 min-
utes. The problem may resolve itself.
Error code appears
If not, disconnect the power, then connect it again. Turn the unit on.
in the window dis-
play of indoor unit:
If the problem persists, disconnect the power and contact your near-
est customer service center.
• E0, El, E2...
• P1, P2, P3...
• F1, F2, F3...
NOTE: If the problem persists after performing the diagnostics and corrective measures de-
scribed above, turn off your unit immediately and contact an authorized service center.
80
Solution
• Check for leaks 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 win-
dows are closed during use.
• Check for leaks, reseal if necessary
and top off refrigerant.
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