KNF LABOPORT N820.18 EX Operating Instructions Manual page 110

Troubleshooting
Pump is switched on and not running; status display illuminates red (100%
ON)
Cause
Drive of the pump has
blocked.
Pump is switched on and not running; status display flashes red (90% ON,
10% OFF)
Cause
Other fault
50
Chemically-resistant Laboratory pump N820.18 EX / N840.18
Fault remedy
à
Pull power cable of the pump out of the socket.
à
Allow the pump to cool.
à
Determine the cause of the blockage and rectify.
Tab.26: Troubleshooting: Pump is switched on but not running; sta-
tus display lights up red
Fault remedy
à
Pull power cable of the pump out of the socket.
à
Allow the pump to cool.
à
Contact KNF Customer Service.
Tab.27: Troubleshooting: Pump is switched on but not running; sta-
tus display is flashing red
Translation of Original Operating Instruction, KNF 317428-317425 05/21
EX