Troubleshooting - Polaris 3900 Sport/P39 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 operating,
hold the cleaner under water and
verify that all three (3) 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
the water and watch the jet.
It should come on and go off.
4. Check for water inside the cleaner
float.
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