VE150 Cooling Unit
21
Problems
Reasons
Possible Issue /
Check
Solution
Notes
experience is very
important, gas pressure
may vary depending on
temperature. Under
normal circumstances
internal pressure is up to
3.5 bar with
temperature between
20-25°C
The unit is
blocked between
compressor and
condenser
Warning, dangerous
situation
,
issue can be solved by a
skilled technician.
There is no actual
danger for people or
system.
More detailed info can be
requested if needed.
It works up to 2
sec.
See "The Cooling
Unit works for
few seconds -
the Unit is new"
section
for few
seconds -
the Unit is
new
It works from 3
up to 5 sec.
Faulty Fan -
disconnect wire
of fan and check
if the unit works
Replace the fan.
Check if quick
couplings are
well tightened.
Tight quick couplings as
much as possible by
hand, then use tools to
tight them up to one
quarter of a turn
Too low or no
gas in the
system
Gas Leakage
4.
The
electrical
consumption is
less than normal.
5.
The
pressure on
charge valve is
lower than 0 bar
(0 psi) when the
system works
6.
The
pressure on
charge valve is
less of 1.5 bar (21
psi) when the
system is off
Where it is possible close
the leak with welding or
remove the part where
is the hole.
Put the system on pressure
with nitrogen gas max 5
bars (70 psi), search the
leakage with liquid leak
detector or electronic nose
for R134a
The Cooling
Unit works
but it is not
cooling -
The Unit is
new
Presence of
humidity inside
the capillary in
4.
The
electrical
consumption is
Switch off the system,
wait about 5 minutes,
then heat up the
More detailed info can be
requested if needed.
