Assembly and Operating Instructions Sand Filter System without Pre-filter
20
English
WHAT TO DO IF...?
Tips for troubleshooting in case of problems that may occur during setup:
Problem
Description of problem Possible causes
Possible remedial measures
Filter systems / Pumps
Insufficient or no filter
performance
Air intake via suction pipe
Check connection piece and seals
on the suction side Teflon tape may
possibly be missing
Mechanical seal is defective
Pump must be replaced
Excessive suction lift
Correct pump height or use a check
valve
Pre-filter or skimmer without water
(level)
Fill up water in pool
Filter is clogged
Backwash in case of sand filter.
Clean/change system or cartridge
Diameter of suction line
too small
Convert to piping system or use larger
diameter
Pump not properly mounted
Fix pump correctly
Foreign particles in the pump
Clean pump
Pump impeller or
shaft is defective
Pump must be replaced
Pump does
not start
Incorrect voltage
Compare pump voltage with mains
voltage
Foreign particles in the pump
Clean pump
Thermal protection relay has
responded
Reset thermal circuit breaker and
determine cause
No voltage
Reset the fuse
Motor is blocked
Pump must be returned for repair
Engine noise
but no filter
performance
Foreign particles in the pump
Clean pump
Motor is blocked
Pump must be replaced
Pump leaking
Mechanical seal is defective
Pump must be returned for repair
Sand in pool
Used filter sand has
incorrect granulation
Observe manufacturer's instructions/
use only original filter sand
Multi-way valve defective
Replace multiway valve
Riser pipe/filter base defective
Pump must be returned for repair
Filter tank/
pipes leaking
Screw connections not
properly tightened (too loose)
Retighten/retension screw connec-
tions
No sealing
Seal with Teflon tape
Mechanical damage
Replace defective parts.
No water flow from pool to
filter system and back.
Hoses on pump and valve are not
mounted/connected correctly.
Please check again if all hoses have
been mounted correctly on valve
or pump (see pages 4 and 5 of this
manual).