Wilo Stratos MAXO Notice De Montage page 100

Installation and operating instructions Wilo-Stratos MAXO/-D/-Z
Faults, causes, remedies
Code Fault
Additional information about causes and remedy:
Power supply too unstable.
Operation cannot be maintained.
Undervoltage
Additional information about causes and remedy:
Operation cannot be maintained. Possible causes:
402
1. Mains overloaded.
2. Pump has been connected to incorrect power supply.
3. Three-phase network is asymmetrically loaded
due to unevenly activated 1-phase consumer load.
Overvoltage
Additional information about causes and remedy:
403
Operation cannot be maintained. Possible causes:
1. Pump has been connected to incorrect power supply.
2. Three-phase network is asymmetrically loaded
due to uneven 1-phase consumer load.
Pump blocked.
404
Additional information about causes and remedy:
In addition to deposits and foreign bodies in the system, the pump shaft can
also be tilted and blocked by heavy bearing wear.
Control module too hot. Permissible temper-
405
Additional information about causes and remedy:
Adhere to permissible installation position and minimum distance from insu-
lation and system components to ensure sufficient ventilation.
Motor too hot.
406
Additional information about causes and remedy:
Adhere to permissible installation position and minimum distance from insu-
lation and system components to ensure sufficient ventilation.
Connection between
motor and module in-
terrupted.
407
Additional information about causes and remedy:
Dismantle the control module to check the contacts between module and
motor.
There is flow through
the pump in the oppos-
ite direction of flow.
408
Additional information about causes and remedy:
If flow passing through pump in the opposite direction is too strong, the mo-
tor can no longer start.
Incomplete software
update.
409
Additional information about causes and remedy:
The pump can work only once the software update has been completed.
Cause Remedy
Power supply is too Check power supply.
low.
Power supply is too Check power supply.
high.
Mechanical influence Check free movement of
is inhibiting the rota- rotating parts in the pump
tion of the pump head and motor.
shaft. Remove deposits and for-
eign substances.
Ensure permissible ambi-
ature of the control ent temperature.
module exceeded. Improve room ventilation.
Permissible motor Ensure permissible ambi-
temperature is ex- ent and fluid temperature.
ceeded. Guarantee motor cooling
with unobstructed air cir-
culation.
Electrical connection Check the motor module
between motor and connection.
module faulty.
External influences Check power control of the
cause flow against pumps,
the direction of the install non-return valve if
pump's flow. needed.
The software update Software update with a
was not completed. new software bundle is re-
quired.
en
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