FAULT DIAGNOSIS QUICK GUIDE
SYMPTOM CAUSE ACTION
• Freezer evaporator and air
• If freezer temperature OK then advise
temperature are correct. the customer that the compressor will
start when there
is
a demand for
cooling.
• Compressor protection is enabled:-
• Compressor protection:
a.
If the appliance
is
accidentally
a.
Allow the compressor to cool and
switched OFF and switched the refrigerant to equalise
in
the
immediately back ON. system.
b.
after a mains power cut,
b.
As
a.
above.
C.
Running continuously,
c1.
Check the position
of
the freezer air
d.
Post defrost cycle, sensor;
c2.
Check refrigerant system for leaks
COMPRESSOR
and/or blockages.
NOT RUNNING
d.
At
the end
of
the defrost cycle the
(Fridge Interior
compressor observes a protection
Light Working)
time delay parameterised
in
the
module, this allows the water to
drain away completely.
• Compressor has a humming noise • Compressor possibly seized or PTC
before the overload switches faulty.
compressor OFF.
• Compressor Start or Run windings • Check the resistances of the
faulty. compressor windings.
• There are situations
of
cooling
• See CONTROL MODULE Parameters
demand
in
which the compressor page 14, Section headed Compressor
remains OFF Operation.
• Mains plug fuse blown.
• Check fuse rating. If the fuse
is
of the
COMPRESSOR
correct rating and has blown then check
NOT RUNNING
appliance for reasons.
(Fridge Interior
• Appliance mains cable faulty.
• Check the condition of the appliance
Light Not
mains cable and the connections to the
Working)
compressor terminal block.
• Installation fault. • Advise customer of installation fault.
CUSTOMER
• The evaporator fan circulating the air
in
the freezer compartment may be
COMPLAINING
heard.
OF SOUNDS
• Cracking sounds: This
is
where
FROM THE
parts inside the fridge freezer
• All the sounds described are quite
FREEZER
expand and contract as they rapidly
normal and mean that the appliance
is
(Sounds
change temperature.
functioning correctly.
different
• Gurgling sounds: Refrigerant
compared with
my previous
flowing through the system pipes
fridge freezer)
can produce gurgling, bubbling,
roaring or humming sounds.
continued
...
16
VVPL00003242_0016
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