Mechanical Faults - Wilo CronoLine-IL-E Einbau- Und Betriebsanleitung

Legend
11.1

Mechanical faults

Fault
Pump does not start or stops working Cable terminal loose
Pump runs at reduced output
Pump making noises
Installation and operating instructions Wilo-CronoLine-IL-E, CronoTwin-DL-E, CronoBloc-BL-E
The following types of errors can occur with differing priorities
(1 = lowest priority; 6 = highest priority):
Error type Description
A A fault exists; the pump stops immediately.
The fault must be acknowledged at the pump.
B A fault exists; the pump stops immediately. The
counter is increased and a timer counts down.
After the 6th fault, this becomes a definite fault
and has to be acknowledged at the pump.
C A fault exists; the pump stops immediately. If
the error exists for more than 5 min, the coun-
ter is increased. After the 6th fault, this
becomes a definite fault and has to be
acknowledged at the pump. Otherwise the
pump restarts automatically.
D Like error type A, but error type A has a higher
priority than error type D.
E Emergency operation: warning with emer-
gency operation speed and activated SSM
F Warning – pump continues to turn
Cause
Fuses defective
Stop valve on the pressure side throt-
tled
Air in the suction line
Cavitation due to insufficient supply
pressure
Motor has bearing damage
Remedy
Check all cable connections
Check fuses; replace faulty fuses
Slowly open the stop valve
Repair leaks on flanges, vent the pump,
change the mechanical shaft seal in case
of visible leakage
Increase supply pressure, observe mini-
mum pressure at the suction port, check
slide valve and filter on the suction side
and clean if need be
Have the pump checked by Wilo cus-
tomer service or a specialised service
centre and repaired if necessary
English
Priority
6
5
4
3
2
1
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