
21
Error signals:
The pump is equipped with self-diagnostics and malfunction detection. Defects
detected by the pumpsystem are signalled to the user with alternating short and
long LED light flashes.
1) No error, pump is running:
LED on
2) Low voltage failure:
SHORT, LONG
3) Speed feedback failure:
SHORT, SHORT, SHORT, SHORT, LONG
4) Overtemperature failure:
SHORT, SHORT, SHORT, LONG
5) Blocked rotor:
SHORT, SHORT, SHORT, SHORT,
SHORT,LONG
6) Airpurge:
200 msec ON – 200 msec OFF – 200 msec
ON
7) Standby:
50 msec ON – 1.5 sec OFF – 50 msec ON
Troubleshooting
Problem
Cause
Solution
Pump
not
running
Not connected or
connected incorrectly
Connect correctly
Pump too hot, dry
operation- or
overheating protection
active
Allow to cool, pump restarts
automatically
Pump blocked
See section 8
“Maintenance/Disassembly”
Pump is
noisy
Not thoroughly air
purged
See section 7.2 “Getting started”
Foreign objects in pump
See section 8
“Maintenance/Disassembly”
Worn bearing
Replace pump
Malfunctioning pumps can be returned to the manufacturer‘s address. The
manufacturer will refuse to accept packages with unpaid shipping or invoices for
repair. The manufacturer grants a two-year guarantee under the condition of
correct installation and proper use.
10.
Disposal
This product and parts thereof must be disposed of in an environmentally friendly
manner. Applicable local regulations must be followed.
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