Wilo Atmos GIGA-N - Faults; Causes and Remedies

Faults, causes and remedies en
Installation and operating instructions Wilo-Atmos GIGA-N 35
WARNING
No persons are allowed to be present inside the working area of the
pump!
Persons may suffer (serious) injuries while the pump is in operation! No persons may
therefore be present inside the working area. If persons must enter the working area
of the pump, the pump must be decommissioned and secured against being
switched on again without authorisation.
WARNING
Sharp edges on the impeller!
Sharp edges can form on the impeller. There is danger of limbs being severed! Pro-
tective gloves must be worn to protect against cuts.
Further steps for troubleshooting
If the points listed here do not rectify the fault, contact customer service. Customer
service can assist in the following ways:
▪Telephone or written support.
▪On-site support.
▪Inspection and repair at the factory.
Costs may be incurred if you request customer services! Please contact customer ser-
vices for more information.
10.1 Faults
Possible error types
Error type Description
1
Delivery rate too low
2
Motor overloaded
3
Pump end pressure too high
4
Bearing temperature too high
5
Pump housing leakage
6
Shaft seal leakage
7
Pump does not run smoothly or is loud
8
Pump temperature too high
Table10: Error types
10.2 Causes and remedies
Error type:
1 2 3 4 5 6 7 8 Cause Remedy
X
Counter pressure too
high
– Check system for
contaminants
– Reset the duty point
X
X X Pump and/or piping not
completely filled
– Vent pump and fill
suction line
X
X X Inlet pressure too low or
negative suction head
too high
– Correct the fluid level
– Minimise resistances
in the suction line
– Clean filter
– Reduce negative suc-
tion head by installing
the pump lower
X
X X Sealing gap too large
due to wear
– Exchange worn neck
ring