SERVICE MANUAL
Model: HRF-663ISB2
38
Issue
2010-01
Rev.
Ref1001S015V0
4) No stoppage of compressor due to damaged heat-insulation layer inside case body and/or
door seal
Analysis of Trouble
When the heat-insulation layer inside the case body deteriorates or the door seal is not closely
touches the door frame, the temperature in the refrigerator will rise and makes the compressor
running continuously.
Remedy
Check the heat-insulation layer for its damaged parts; repair it 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,
respectively.
5) Too much food is placed in the refrigerator, or is placed too densely, resulting in poor ventilation or
poor conditions for temperature sensing, and hence no stoppage of the compressor.
6) Too high ambient temperature, poorer ventilation and heat dissipation make the compressor
running without stop.
8-3-6
. 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 (0); 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 .
