9
GB
12. Faults
The motor fails to start
Causes
Remedies
No voltage
Check the power supply
Pump impeller is blocked - thermostat has switched off
Dismantle the pump and clean it
The pump fails to draw in any water
Causes
Remedies
Suction valve is not in the water
Place the suction valve in the water
No water in the pump compartment
Fill water in the suction connection
There is air in the suction line
Check the suction line for leaks
Suction valve has a leak
Clean the suction valve
Suction basket (suction valve) is clogged
Clean the suction basket
Max. suction head exceeded
Check the suction head
Insufficient delivery rate
Causes
Remedies
Suction head is too high
Check the suction head
Suction basket is dirty
Clean the suction basket
Level of water sinks rapidly
Place the suction valve deeper
Pump output reduced by contaminants
Clean the pump and replace worn parts
The thermostat switches off the pump
Causes
Remedies
Motor overloaded - excessive friction
Dismantle the pump and clean
caused by foreign bodies
Prevent foreign bodies from being drawn in
(filter)
Caution!
Do not allow the house waterworks to run dry.
13. Ordering replacement parts
Please quote the following data on all orders for replacement parts:
앬
Type of appliance
앬
Art. No. of the appliance
앬
Ident No. of the appliance
앬
Replacement part No. of the part required
For our latest prices and information please go to www.isc-gmbh.info
We wish to draw express attention to the fact that, in accordance with the Product Liability Law, we shall not
be liable for any damage resulting from our appliances if said damage was caused by an incorrect repair, or if
any parts were replaced by parts other than original parts or parts approved by us, or if the repair was not
performed by the ISC Customer Service.
Anleitung NGP 90 i 15.03.2006 10:26 Uhr Seite 9
