Air Techniques, Inc.
Page 12
AS12, AS22, AS50, AS70,
I n t e r n a t i o n a l
TROUBLESHOOTING
Problem
Possible Cause
Possible Solutions
1 . Motor does not start .
a . No electric power .
a . Check circuit breaker at main power
panel .
b . Power not connected .
b . Check 24 Volt remote connections .
c . Defective circuit breaker .
c . Circuit breaker needs to be replaced .
Call your authorized Air Techniques
dealer for service .
2 . Motor tries to start, cir-
cuit breaker trips off .
(* See bottom page 13)
a . Voltage too low . If each
compressor head runs
separately,but will not run
together, the voltage is too low .
a . AS12INT, AS22INT, AS50INT and
AS70INT require a minimum of 198
Volts . If the voltage is below the required
minimum, a boost transformer must be
installed . Call your authorized dealer .
b . Power supply cable too small .
b . See SITE REQUIREMENTS Table .
c . Loose electrical connection .
c . Call your authorized dealer for service .
3 . Unusual noise .
a . Intake filter(s) not seated cor-
rectly .
a . Remove filter(s) . Replace if clogged or
dirty . When installing, make sure filter
chamber is clean and rubber flange on
top of filter is pushed all the way down
into the metal cylinder
b . Intake filter(s) clogged or dirty .
b . Replace filter(s) . ( PN 89831)
c . Motor noise .
c . Call your authorized dealer for service .
d . Air leaks
d . Call your authorized dealer for service .
e . Check cooling fans
e . If fan is loose or broken, call your
authorized dealer for service .
4 Compressor cycles but
no pressure buildup to
115 psi .
a . Motor noise .
a . Replace filter(s) . ( PN 89831)
b . Leak in compressor .
b . Close the storage tank outlet valve .
Check all fittings for leaks . If a leak is
found, call your authorized dealer for
service .
c . Pressure switch needs to be
adjusted.
c . Disconnect the main power supply .
Drain the storage tank slowly until a
“click” is heard . Storage tank pressure
should read 85 PSI on the pressure
gauge .
Close the tank outlet valve, turn on the
power switch and verify the pump-up
time for your model
AirStar
. Call your
authorized dealer if the pump-uptime is
incorrect . (See Post Installation Check
for pump-up times .)
