contracting or expanding, this sound will be made, which is normal.
5.8 The motor operation sound in the compressor is appears to be louder at night or
begin starting. which is a normal phenomenon; also the uneven placing would lead to
too much running noise.
There is a peculiar
smell in the units
6.1 Is the food with special smell sealed tight?
6.2 Does it have long time storing food or degenerated food?
6.3 Whether the internal cabinet needs cleaning.
the forefront or the
middle cabinet heats
7.1 As fridge Anti-condensation tube is placed here and caused the above phenomenon,
which is normal.
Refrigerator’s two
sides or the back heat
8.1 As condensation tube is placed here and caused the above phenomenon, which is
normal.
the cabinet surface
condensation
9.1 Air humidity is too large.
◆
The solution for the common problem.
1.Cooling is not enough good
(Many reasons might cause that cooling not enough good, as blow :)
Reason
Analysis
Solutions
1) Leakage of Gas
If some gas leaked unit will work not well.
Phenomenon of failure:
a. lower pressure of liquid cycle system
b. high temperature of copper tube of
discharging gas, hand feels very hot.
C. much noise, sounds like “ZZZZZ”, comes
from outlet of capillary.
d. the temperature fell down very slowly.
First find out the point of leaking on
tube, and then sealed it, vacuuming
it, finally recharge with Gas.
Note:
If you find oil on somewhere, it is
possible that leakage point is there.
2)
The quantity of Gas is
too much
If too much Gas was charged into the cycle
system, the extra gas will occupy some space
of evaporator, so that the area of heat
exchange becomes less, unit will work not well.
Phenomenon of failure:
a, higher pressure of liquid cycle system than
norm.
b, higher temperature of condenser.
c, larger electric current of compressor
d, there maybe ice on the suction tube.
e, when gas is too much, some gas liquid might
goes back into compressor, compressor will be
damaged by liquid.
First stop unit for several minutes,
and then open charging tube,
discharge all of gas. Change a new
filter, and then recharge gas, finally
sealed the system.
3) There is air in the
liquid cycle system
The air in system will cause lower efficiency of
cooling.
Phenomenon of failure:
a, higher pressure of liquid cycle system than
norm, but the pressure is not over the limit.
First stop unit for several minutes,
and then open charging tube,
discharge all of gas. Change a new
filter, and then recharge gas, finally
sealed the system.
Summary of Contents for RD-31WC4S series
Page 4: ...Parts Description Circuit diagrams and Basic parameters ...
Page 18: ...Water Dispenser ...
Page 19: ......