7
Troubleshooting
7.1
Troubleshooting
Error
Pump is not running
Pump is not running
Pump is not running
Pump is not running
Pump is not running
Multi-vane impeller is blocked
Reduced pumping capacity
Reduced pumping capacity
Reduced pumping capacity
Reduced pumping capacity
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Cause
No mains voltage available
Fuse has tripped in mains fuse box
Connection cable damaged
Float switch is defective
Overheating
Dirt, solids have become lodged between
the multi-vane impeller and the spiral hous-
ing.
Intake cage blocked
Spiral housing is worn
Multi-vane impeller is worn
Vent is blocked
Remedial measures
Check the mains voltage
Replace fuse
Repair only by qualified electricians/service
partners
Contact customer service
Submersible pump switches back on again
automatically after the temperature has
dropped
Clean the pump (see pump maintenance )
Clean the pump (see pump maintenance )
Replace spiral housing
Replace multi-vane impeller
Clean the vent
016-083