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Maintenance and cleaning
Attention! Dangerous electrical voltage.
Possible consequences:
Death or severe injury.
Protective measures:
•
Electrical units and installations with a rated voltage of U > 12 V AC or U >30 V DC located in the water:
Isolate the units and installations (switch off and disconnect from the power supply) before reaching into
the water.
•
Isolate the unit before starting any work.
•
Secure the unit to prevent unintentional switching on.
Note!
Recommendation on regular cleaning:
•
Clean the pump at least twice a year.
•
Never use aggressive cleaning agents or chemical solutions. These could attack the housing surface or impair the
function.
•
Recommended cleaning agent for removing stubborn limescale deposits:
– Vinegar- and chlorine-free household cleaning agent.
•
After cleaning, thoroughly rinse all parts in clean water.
Cleaning the unit
Unscrew the nozzle tube or stepped hose adapter with O ring 12x4 from the connection thread (A), open the engage-
ment hooks on both sides of the filter housing and remove the top strainer casing (B). Take the pump out of the top
foam filter, remove the foam filters, the gravel bags and the biosurface elements from the bottom strainer casing (C).
Unscrew the pump lid or the pump housing (D) and remove the impeller. Clean the impeller (E) and strainer casings
using clear water and a brush, rinse the foam filters, gravel bags and biosurface elements under running water. After
cleaning, fit the unit in the reverse order.
Storage/Over-wintering
Remove the unit at temperatures below zero degrees centigrade. Thoroughly clean and check the unit for damage.
Store the unit immersed in water or filled with water in a frost-free place. Do not flood the power plug!
Disposal
Do not dispose of this unit with domestic waste! For disposal purposes, please use the return system provided.
Disable the unit beforehand by cutting off the cables.
Malfunctions
Malfunction
Cause
Remedy
The unit is not operating
No mains voltage
Check mains voltage
Insufficient delivery rate
Impeller blocked
Clean impeller
Strainer casing clogged
Clean strainer casing
Foam filter clogged
Clean foam filter
Unit switches off after a short running period
Water temperature too high
Note maximum water temperature of +35°C
