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Problem
Possible Causes
Solution
The unit is not
working
Power failure.
Wait for the power to be restored.
The power is turned of.f
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.
Tunr 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 compresso.r
The voltage is too high or too low.
Install a manostat to regulate the voltage.
Poor heating
performance
The voltage is too high or too low.
Install a manostat to regulate the voltage.
Cold air entering through doors and
windows.
Make sure that all doors and windows are closed
during use.
Cold air entering through doors and
windows.
Check for leaks, re-seal if necessary and top off
refrigeran.
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 minues. 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
and begins with
the letters as the
following in the
window display of
indoor unit:
• E(x), P(x), F(x)
• EH(xx), EL(xx),
EC(xx)
• PH(xx), PL(xx),
PC(xx)
NOTE: I
f your problem persists after performing checks and diagnostics above, turn off your unit immediately and
contact an authorized service center.
