Premium PFR40W - Table for Quick Answer for the Field Problem

10
Table for quick answer for the field problem：
Item
Phenomenon
Check point and the detail
Caused by
(A).
Not cool
completely
Power indicator is
not on and
compressor
doesn’t run
Check that other
appliances are working
or not.
No power supply
in neighbor
house
Field power
supply is cut off.
All of other
appliances in
house don’t
work
Main fuse is cut
off.
Only this freezer
doesn’t work
Power supply
outlet has
problem
Compressor
doesn’t run, but
power indicator is
on.
If the cooling thermostat is shorted of the
circuit or turn the thermostat to the coldest
point, the compressor can run.
Thermostat is
breakdown
There is sound when turning the knob of
the thermostat.
The knob is
broken or is not
installed
properly.
Thermal protector may
be overloaded.
Check it is cutoff
or not by the
multi-meter.
If it is cutoff,
means it is
broken down.
PTC Starter
Check it is cutoff
or not by the
multi-meter.
If it is open,
means it is
broken down.
Check the circuit
wiring
Check it have
broken p
oint or
not in the circuit
wiring according
the electrical
diagram
Maybe the lead
is broken or the
connection point
is loosing
Compressor problem
Measure the
winding
resistance of the
compressor
The winding is
broken or burnt
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.