Troubleshooting - Polaris 3900 Sport Owner's Manual

Troubleshooting

If the cleaner regularly displays any of the following actions, adjustments may be necessary to
restore performance. Refer to the exploded parts diagram for part references.
Action: Cleaner hangs up on steps or
other obstacles for longer
than 3 minutes.
Solution: 1. Check the wheel RPM.
2. Verify the back-up valve is
cycling. Lift the valve out of the
water and watch the jet.
It should come on and go off.
3. Adjust the thrust jet.
4. Remove unnecessary pool
hardware or install a Ladder
Guard Kit (part #G21).
Action: Cleaner is sluggish, running with
less power than normal.
Solution: 1. Check the filter screen in the
in-line filter assembly and clean
if necessary.
2. Clean the skimmer basket,
pump basket, and pool filter.
3. Check the hoses, hose
connections, and swivels for
leaks that could cause loss of
water pressure.
4. Check the wheel RPM. If
below 30 RPM, see Adjusting
the Wheel RPM to increase
flow to cleaner.
Action: Cleaner races around the pool
and/or does not make contact
with the pool bottom.
Solution: 1. Check the wheel RPM. If
more than 36 RPM, see
Adjusting the Wheel RPM
to reduce flow.
2. Verify the back-up valve is
cycling. Lift the valve out of
the water and watch the jet. It
should come on and go off.
Action: Cleaner doesn't back up.
Solution: 1. Verify the back-up valve
is cycling. Lift the valve out of
the water and watch the jet.
It should come on and go off.
2. Check the wheel RPM.
If not in 30-36 RPM range, see
Adjusting the Wheel RPM.
3. If the filter bag is full, empty
or replace it.
4. Make sure feed hose
is floating.
Action: Cleaner only turns in one
direction.
Solution: 1. Adjust the thrust jet.
2. Make sure feed hose
is floating.
Action: Feed hose becomes tangled.
Solution: 1. Remeasure the hose to
verify that it is adjusted to the
proper length for the pool.
2. With the cleaner operating,
check that the swivels and
hose connections turn freely.
3. Make sure the feed hose
is floating.
4. With the Polaris
hold the cleaner under water
and verify that all three wheels
are turning together.
Action: The front end of the cleaner
lifts all the time.
Solution: 1. Check the wheel RPM.
If not in 30-36 RPM range, see
Adjusting the Wheel RPM.
2. Adjust the thrust jet
downward.
3. Verify the back-up valve is
cycling. Lift the valve out of
9
® operating,