GE PTV15SAMR, Technician Service Manual

Page: 29 / 85

Page 29
IX. FAILURE DIAGNOSIS
Operating
1. Not cold at all (freezing
storage and cooling chamber are
not cold)
Is the plug being inserted? Insert the power plug.
No
Is the plug being inserted?
Any shutdown?
Check the abnormal power cord
or switch
Yes
No
Is the voltage over 99V?
Yes
Is a special socket used by the
refrigerator?
Is the socket affected by other
electrical wiring?
No No
Is the geographical environment
being used a special one?
Yes
Short the F thermostat and see if
the compressor is operating.
Is the compressor operating?
Yes
No
Change F-THM, then check is it
due to the freon leakage of
thermo sensor or by prro
contacting point?
Operating
When regulate D meter to
cooling operation side, is the
compressor operating?
Is the
temperature fuse
melted?
Replace the
temperature
switch.
Not operated
Operating
No
Is the
temperature
switch engaged?
Engaged
Replace the
temperature
switch.
No
Engaged
Replace D
meter.
Turn D time to right
side till hearing two
noises
Short theoverload protector and
see if the compressor is
operating.
Replace the
overload
protector
Non-operating
Is the relay of PTC starter
normal?
Non-Operating
Replace the
relay of PTC
starter.
Abnormal
Impedance short
and poor circuit
Is the capacitor normal at
starting or operating?
Yes
Replace the
relay of PTC
starter.
Abnormal
In case of the normal item,
the needle of the panel will
become a high ohms after
one vibration