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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.
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.
b, higher temperature of discharging
tube.
C, much noise
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.
4)Low working
efficiency of
compressor
General when a compressor works for
many years, some parts of compressor
were wear, so that compressor
discharge less gas out, unit does not
work strongly.
Phenomenon of failure:
a, lower pressure of discharging, check
the pressure of system with pressure
meter to see if it is normal.
b, higher temperature of compressor
surface.
C, cut off the discharging tube, to see if
you can block the gas coming out of the
tube when compressor is working.
Change a new compressor.
5) There is
something that
blocked the liquid
cycle system
Some time there is something blocked
the filter of liquid cycle system, so that
unit is not cold.
Phenomenon of failure:
a, lower pressure of discharging
b, lower temperature of discharging.
Change a new filter
2.NO COOL
(Popular failure reasons are below):
Reason
analysis
Solutions:
1) Leakage of gas
Phenomenon of failure:
a, leaking fast
b, leaking slowly
c, no voice of liquid flowing
d, cut off charging tube, no gas
goes out.
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)There is some
thing that blocked
the liquid cycle
system
A,Ice blocking
Sometime because unknown
reason water comes into liquid
cycle system, the capillary will
be blocked by water after unit
runs for period of time.
Phenomenon of failure:
The unit works well in the
First stop unit for several minutes, and
then open charging tube, discharge all
of gas. Blow the cycle system with gas
of nitrogen, and then recharge Gas,
finally sealed the system.
