CH -12MSPHWM-230VI User Manual page 18

Issue
The unit is not
working
The unit starts and
stops frequently
Poor heating
performance
Indicator lamps
continue flashing
An error code appears
in the window display
of the indoor unit:
•
E0, E1, E2...
• P1, P2, P3...
• F1, F2, F3...
NOTE: If your problem persists after performing the checks and diagnostics above, turn o your
unit immediately and contact an authorized service center.
 Page 17 
Possible Causes
There is a power failure.
The power is turned o .
The fuse is burned out.
The remote control batteries are
dead.
The unit' s 3-minute protection
has been activated.
The timer is activated.
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
lower than 44.5°F (7°C).
Cold air is entering through
doors and windows.
Refrigerant is low due to a 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
Wait for the power to be
restored.
Turn on the power.
Replace the fuse.
Replace the batteries.
Wait 3 minutes after
restarting the unit.
Turn the timer o .
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 an auxiliary heating
device.
Make sure that all doors
and windows are closed
during use.
Check for leaks, re-seal
if necessary, and top o
refrigerant.