15
Installation & Operation Manual
11. TROUBLESHOOT OF ABNORMAL PHENOMENA
Before asking for serving or repairing, check the following points:
Stop operation or drive up
automatically
No operate
Inefficient heating
Detect the timer whether be given wrong operation.
Detect antifreezing mode is opened.
Whether the power is cut.
Whether the manual power supply switch is off.
Whether fuse is broken.
Whether the protection device works.(Operation lamp is lightened.)
Whether it is the time set.(Operation lamp is lightened.)
Whether the inlet and outlet of bolier units is blocked.
In case of following malfunctions, please cut off the manual power switch and contact with local dealer or aftersale service centre:
1) ON/OFF operation is ineffective.
2) Fuse or RCCB is frequently broken.
PHENOMENA
CAUSE
Table 11-1
Not distribute to
malfunction
Please check
that again
White aerosol or globule
is give out.
Make sound of “hiss”
every now and then.
Air supply motor stop automatically to defrost.
At the begining and the end of the defrost process, sound is give out in motor valve
occur.
During the process or just after have stoped, sound like water flow occur, which will be
amplified at the first 2~3 minutes, this is caused by process of refrigerant current or
water discharge at dehumidifying operation.
Slight ”hiss” is caused by heat exchanger as temperature changes. The sound give
out because of heat expands and cold contracts of heat exchanger.
During the beginning or just after have stopped, sound like clock occur, which is
caused by electric expanding valve operation.
