Wilo TOP-Z - Page 44

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40 WILO SE 11/2023
Incorrect direction of
rotation.
Correct the electrical connections
in the terminal box:
Refer to the direction of rotation
arrow on the rating plate
(only for 3~) terminal box type 6/7:
Signal lamp off Interchange two phases at the
mains supply terminals.
With the power
switched on, the pump
does not run
Fuse protection tripped /
defective.
Exchange / switch on the fuse
protection.
If the fuse protection trips again:
• Check the pump for electrical
defects.
• Check the mains cable to the
pump and check the electrical
connections.
Residual-current device
has tripped.
Switch on the residual-current
device.
If the residual-current device trips
again:
• Check the pump for electrical
defects.
• Check the mains cable to the
pump and check the electrical
connections.
Undervoltage Check the voltage at the pump
(refer to the rating plate).
Damage to the windings Contact customer service.
Terminal box defective. Contact customer service.
Capacitor defective (only
for 1~). Terminal box
type 1/2/3/4/5
Replace the capacitor.
Cable jumper for speed
change-over not fitted/
wrongly fitted. Terminal
box type 2/4
Correctly install the cable jumper,
see Fig. 4/7b
Speed selection plug is not
fitted.
Terminal box type 5/6/7
Fit the speed selection plug.
Fault Cause Remedies