Troubleshooting; Corrective Action - Pentair Prowler 920 Guide D'installation

10
Problem Possible Cause
Cable twisting or Obstruction in pool
cable coils up
Gets stuck on main drain cover
Excess cable in the pool
Cleaner is moving in Dirt stuck in moving parts
circles
Tracks worn due to extended use
Power supply positioned incorrectly
Algae in pool
Cleaner does not Power supply positioned incorrectly
reach all areas of the
pool
Cleaner does not climb walls
Algae on pool walls and floor
Pool filter and pump is on
Cleaner does not Cleaner is too heavy
climb walls
Algae on walls
Water temperature too low and/or
too high
Brushes are worn
Debris caught around impeller
Cleaner is too light from trapped air
Unsuitable pH level
Motor not working Impeller blocked
Drive system blocked
Electrical problem - motor unit,
communication cable, or power
supply
Cleaner will not sink Air caught in trapped in cleaner
Power supply or Not plugged in properly or main
power supply switch socket
light is not working
is damaged
PROWLER™ 920 Robotic Inground Pool Cleaner Installation and User' s Guide

TROUBLESHOOTING

Corrective Action

Remove obstruction in pool.
Turn off filter and install main drain cover ring.
Straighten cable and lay in sun periodically.
Remove excess cable from pool.
Remove dirt from moving parts.
Contact your dealer. Replace tracks.
Place power supply in a position so that the
cleaner can reach all walls.
Correct pool and water conditions.
Place power supply in a position so that the
cleaner can reach all walls.
Check reasons for not climbing walls below.
Brush pool walls and floor.
Turn off pool filter and pump and run another
cleaning cycle.
Clean and wash cartridge.
Brush walls.
Ideal water temperature between 6-35°C
(43-95°F).
Replace brushes - contact your dealer.
Clean impeller (see page 8).
Turn cleaner upside down under water to
remove trapped air.
Check pH level - should be between 7.4 - 7.8;
minimum level of 7.2.
Clean impeller (see page 8).
Clean tracks and wheels.
Consult with your dealer or service center.
Turn cleaner upside down under water to
remove trapped air. Wash the cartridge.
Remove calcium deposits or other chemical
sediments.
Open inlet flap in the bottom lid to remove dirt
and/or trapped air.
Reconnect and check main power supply.