Troubleshooting
Filter does not pump water or does not run:
Possible cause:
No power.
Impeller blocked by gravel or sand. Impeller missing
or defective.
Unable to install pump head or modules:
Possible cause:
Gravel, sand or dirt in the slide-in guides.
Filter performance declining considerably:
Possible cause:
Filter media very dirty.
Suction intakes clogged.
Water outlet misaligned.
Pump dirty.
Impeller broken / defective.
Warranty / Product registration / Disclaimer: Our products are subject to strict quality controls. In additi-
on to the legal warranty of 24 months, we therefore offer you a one-year guarantee on the purchased
product. To make use of this guarantee, register your device online quickly and easily at:
www.dohse-aquaristik.com/registration
Your legal rights are not restricted by this. Register your product immediately
after purchase to benefit from the following advantages from the very beginning:
∙ 1 year guarantee (see guarantee conditions) in addition to the legal warranty
∙ faster service and support tailored to your individual needs
∙ your proof of purchase can be retrieved digitally from us in case of guarantee claims
This does not apply to wear parts. In the event of a warranty claim or repairs,
please return the device to the retailer where it was purchased.
Improper handling, natural ageing, breakage or damage due to force void all warranties or guarantees. The original receipt
of purchase serves as proof of purchase.
Dohse Aquaristik GmbH & Co. KG assumes no liability for damages resulting from use of the device. Technical changes
reserved.
Declaration of conformity
The product is approved in accordance with the respective national regulations and guidelines and
complies with EU standards.
The manufacturer certifies the devices comply with EMC Directive 2014/30/EU, LVD Directive 2014/35/EU &
ROHS Directive 2011/65/EU.
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Dohse Aquaristik GmbH & Co. KG · Otto-Hahn-Str. 9 · 53501 Gelsdorf · Germany
Solution:
Check mains plug for damage and plug in. Check
socket for correct voltage.
Clean impeller + housing. If necessary, replace
the impeller.
Solution:
Disassemble filter and clean under running water.
Solution:
Clean filter media as described or replace.
Clean suction intakes.
Check and adjust water outlet.
Clean pump chamber and impeller.
If necessary, replace and reassemble.
Registration: