20
TROUBLESHOOTING
GUIDE
Troubleshooting 1
If the vacuum pump is running, but the pump
will not prime, follow the steps below until the
pump will prime.
1. Make sure there are no kinks in the
tubing and no cracks in the dome.
Replace any tubing that has been
kinked and replace any damaged
domes.
2. Remove the tubing from the dome. If
you can feel a vacuum on the tubing,
most likely there is a vacuum leak in
the system. Reinsert the tubing into
the dome and make sure that all of
the pieces of tubing are pushed in as
far as they will go, and are securely
installed into the tubing fittings.
TECH TIP:
One method
that can be used to
check for leaks is to
apply shaving cream
on the connections of
the solenoid valve assembly, dome
assembly, and float check valve. If
there is a leak in these parts, the
shaving cream will be sucked in at the
leak location. If the leak is confirmed
at a connection, tighten the fittings at
the leak location and try to prime the
pump again.
3. If tightening does not fix the leak,
take the connection that is leaking
apart and put Teflon tape or other
thread sealant on the male fitting and
reassemble.
4. Check the reeds in the vacuum pump.
If the reeds are old and not providing
adequate vacuum, this could be an
additional reason you are having
priming problems.
5. Repeat steps 2 and 3 until all
leaks in the system are addressed.
6. If additional information or
assistance is needed, call
your
Smith & Loveless, Inc.
Representative
or the Smith &
Loveless, Inc. Parts Department at
(800) 922-9048
.
Troubleshooting 2
If the pump runs, but it is not primed and both the
Red
and
Green
indicating lights are Off follow
the steps below until the pump will prime.
1. If both the Red and Green indicating
lights on the
SONIC START
®
Prime
Sensing Probe are not lit, the
SONIC
START
®
is not getting power. You
have a power supply issue. Check
the
Sonic Start
®
Din Connector
Cable (Item 9), and
SONIC START
®
Operating Module to make sure
everything is securely attached.
2. Continue checking the wiring until
the
Green
indicating light is lit. Once
power is restored to the
SONIC
START
®
Prime Sensing Probe, the
pump will operate normally.
