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11
Spare parts
Installation and operating instructions • Wilo-Atmos GIGA-NHT • Ed.01/2023-10
Error type:
1
2
3
4
5
6
7
X
X
X
X
X
X
X
X
X
X
Table 11: Causes of error and remedies
Spare parts may be ordered via a local installer and/or Wilo customer service. List of original
spare parts: Refer to the Wilo spare parts documentation and the following information in
these installation and operating instructions.
CAUTION
Risk of material damage!
Trouble-free pump operation can only be guaranteed when original
spare parts are used.
Use only original Wilo spare parts!
Information to be provided when ordering spare parts: Spare part num-
bers, spare part designations, all data from pump and drive rating plate.
This helps prevent return queries and incorrect orders.
8
Cause
Coupling distance not
maintained
X
– Flow rate too low
– Housing screws not
correctly tightened or
gasket defective
Leak in mechanical seal
Shaft sleeve (if present)
worn
Imbalance of the impeller – Rebalance the impeller
Bearing damage
Foreign object in the
pump
X
Pump pumps against
closed shut-off device
en
Remedy
– Correct the coupling
distance
– Maintain recommended
minimum flow rate
– Check tightening
torque
– Replace gasket
– Replace the mechanical
seal
– Replace the shaft
sleeve
– Exchange bearing
– Clean pump
– Open the shut-off
device in the pressure
pipe
37
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