18
Storage/overwintering
The unit is frost-proof down to temperatures of -4 °F (-20 °C). If you wish to store the unit out-
side of the pond, clean it thoroughly with a soft brush and water, check it for damage, then store
it submerged or filled with water. Do not immerse the power plug in water!
Troubleshooting
Malfunction
Cause
Remedy
The pump does not start
No power supply
Check power supply
Supply lines kinked
Route the supply lines without kinks
Supply lines clogged
Check/clean supply lines
The impeller unit is blocked
Remove block, check impeller unit for ease
of movement
Pump does not transport liquid
Insufficient conveyed volume
Filter casing clogged
Clean filter pans
Excessive loss in the supply
lines
Reduce hose lengths to the necessary
minimum, remove unnecessary connec-
tion parts
Impeller unit is running slug-
gishly
Check impeller unit for ease of movement
Pump switches off after a short
running period
Water is heavily soiled
Clean pump
The impeller unit is blocked
Remove block, check impeller unit for ease
of movement
Pump has run dry
Check/clean supply lines
Water temperature too high
Adhere to the maximum permissible water
temperature. (