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Analysis of Trouble
When the heat-insulation layer inside the case body deteriorates or the door seal does
not closely touch the doorframe, the temperature in the refrigerator will rise and makes
the compressor run continuously.
Remedy
Check the heat-insulation layer for damaged parts. Repair it if damaged to improve its
heat-insulation property. If the door has deformed or the door seal is not tightly sealed
against the case body, repair them.
e) Too much food is placed in the refrigerator, or is placed too densely, resulting in
poor ventilation or poor conditions for temperature sensing hence no stoppage of
the compressor.
f) Too high ambient temperature, poorer ventilation and heat dissipation make the
compressor run without stopping.
Electric leakage of refrigerator
a) Slight electric leakage
Electric insulation has deteriorated due to being affected with damp, thus resulting in
slight electric leakage.
b) Serious electric leakage
Refrigerator case has become live due to faults occurred in some electric devices or the
erroneous wiring in installing power cord plug or outlet by the user. This is very
dangerous.
c) Electric leakage test
ii) Slight electric leakage
A tingle sense will be experienced as soon as you touch the metal parts of the
refrigerator with the hand. When you test them with a test pencil, its neon lamp will
come on. In that case, the first thing you need to do is to determine whether the
grounding is perfect. If the grounding has no problem, turn off the refrigerator
immediately, then check the insulation of electric circuits with a voltmeter.
iii) Serious electric leakage
Do not touch the case body of the refrigerator, its door handle or other metal parts with
your hand. When you test the refrigerator with a test pencil, it will light up intensively.
Measure the resistance between the power cord plug and the case body with a
voltmeter, the reading will be zero (0
Ω
); in the worse case, the fuse will blow. Check
the 3-prong outlet to see whether the live wire and the null line are inversely
connected. One possibility is that the live wire and null line of the outdoor power
supply circuit have been inversely connected; this makes the null line become a live
wire.
