Owner Manual

11
Measure the
insulation
resistance by
meg-ohm meter,
if the insulation
resistance < 1
MΩ,the unit
can’t be used for
long time.
The winding is
burnt.
Power supply voltage
The voltage is
too low.
(Maybe lower
than 175V)
Compressor
can’t start
because of under
voltage.
Compressor can
run
Cooling system
There is no
sound of
refrigerant
flowing in
cooling system
and it leaves oil
on the welding
point
Leakage of
refrigerant
There is no
sound of
refrigerant
flowing in
cooling system
and no oil on the
welding point.
Inside leakage of
cooling pipe or
the pipe is
blocked.
Compressor
No air is
discharged out
on the
discharging
mouth of the
compressor.
Compressor
valve is
breakdown
There is
abnormal sound
inside
compressor
Compressor is
breakdown
(B)、
Compressor
Incorrect using
Check the thickness of frost(>5mm?)
The frost is too
thick