Maintenance Service and Trouble Shooting
6) Too high ambient temperature, poorer ventilation and heat dissipation make the
compressor running without stop.
F. Electric leakage of refrigerator
1) Slight electric leakage
Electric insulation has deteriorated due to being affected with damp, thus resulting in
slight electric leakage.
2) 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.
3) Electric leakage test
a) Slight electric leakage
A tingle sense will be experienced as soon as you touch the metal parts of the
refrigerator with your 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 is no problem, turn off the refrigerator
immediately, then check the insulation of electric circuits with an avometer.
b) Serious electric leakage
Never touch the case body of the refrigerator, its door handle or other metal parts with
your hand. 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 an avometer ,the
reading will be zero (OO); in the worst case ,the fuse will be blown .Check the 3-prong
outlet to see whether the live wire and the null line are inversely connected ,this makes
the ground protection lead-out from the power cord plug being connected to the live
wire .Another possibility is that the live wire and null line of the outdoor power supply
circuit have been inversely connected accordingly ,this makes the null line become a
live wire .
G. Stronger vibration and loader noise
1) Refrigerator placed improperly
a) Uneven ground
Uneven ground will cause the refrigerator to be placed unsteadily. Causing stronger
vibration and noise during its operation.
b) Leveling screws not properly adjusted
If the leveling screws on refrigerator legs have not been adjusted properly. Vibration
and noise will still occur even if the refrigerator has been placed on a level ground.
2) Abnormal noise from compressor
Three suspended spring inside the compressor case are out of balance, and strike
against the case. Moreover, the wear of compressor parts may cause noise
sometimes.
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