KNF LABOPORT Manual Del Usuario página 104

Chemically-resistant Laboratory pump N820.18 EX
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
Translation of Original Operating Instruction, English, KNF
317428-317425 09/20
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.25: 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.26: Troubleshooting: Pump is switched on but not running; sta-
tus display is flashing red
Fault cannot be rectified
If you are unable to identify any of the specified causes, con-
tact KNF Customer Service or send the pump to KNF Cus-
tomer Service (contact data: see www.knf.com).
Preparing for return
1. Flush the pump with air for a few minutes (if necessary for
safety reasons: with inert gas) to free the pump head of
dangerous or aggressive gases (see Chapter 11.2.1
Flushing the pump).
2. Remove the pump.
3. Clean the pump (see Chapter 11.2.2 Cleaning the pump).
4. Send the pump together with completed Health and
Safety Clearance and Decontamination Form to KNF,
stating the nature of the transferred medium.
Troubleshooting
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