Tech West ACL4D2 - Dual Compressor Troubleshooting

20
Trouble Shooting Chart
Dual Ultra Clean Lubricated Compressor
DOES AIR
COMPRESSOR
RUN?
Does compressor run
for a few
seconds, “chugs”, then
stops?
Does compressor pres-
surize from 80 to 100
psi in less than 1
minute with no air
being used?
YES
NO
NO
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Are there leaks in
compressor or in
office piping system?
Clean
or
replace.
YES
NO
Is intake filter
clogged?
Dual Ultra Clean Lubricated Compressor Diagram
NO
Is there sufficient
pressure build-up
with head
discharge line
removed?
NO
Defective
head,
contact
Tech West.
YES
Locate
and repair.
NO
Does air leak
from unloader
valve until unit
cycles again?
Examine the check
valve and the
purge valve for
leaks.
YES
NO
NO
YES
Replace
intake
filter.
Contact
Tech West.
YES
Is there a
blockage in
the air lines?
YES
Locate
and repair.
Note: Close
shut off valve.
Pump up tank to
100 psi. If pres-
sure is main-
tained for 15-20
min., leak is in
office lines.
Run unit in manual
purge mode for
one week. If
indicator still wet,
replace desiccant.
Does compressor
cycle with no air
being used?
YES
YES
NO
Is the moisture
indicator pink?
YES
Does
unloader
valve system
function
properly?
YES
Does com-
pressor run
too hot or too
frequent?
1. Locate and repair
leaks.
2. Ventilate if room is
above
100 deg. F.
3. Contact compressor
may be undersized.
Is there excessive
oil usage?
NO
YES
Is head
level?
YES
NO
Level
head.
YES
Does com-
pressor run
too hot or too
frequent?
YES
NO
Contact
Tech West.
1. Ensure that
unloader valve
& pressure
switch close on
pump-up, &
open on purge
cycle.
2. Ensure that
drain line is not
clogged.
NO
YES
Check voltage
supplied to the
compressor.
Does purge
valve seal while
running?