Spare Parts - Wilo Drain TSW serie Einbau- Und Betriebsanleitung

English
10 Faults, causes and remedies
Only have faults remedied by qualified personnel!
Observe safety instructions in 9 Maintentance.
Fault
The pump does not start or stops
during operation
Pump does not switch on/off
Pump does not pump
Flow rate drops during operation
If the fault cannot be remedied, please contact
the trade or your nearest Wilo-After-sales
Service or agent.

11 Spare parts

Spares should be ordered through local trade out-
lets and/or the Wilo-After-sales Service.
To avoid queries and incorrect orders, all the data
on the name plate must be indicated when order-
ing.
Subject to change without prior notice!
16
Cause
Current supply interrupted
Motor protection switch has tripped
Fluid temperature too high
Pump silted up or blocked
Float switch blocked or cannot move freely
Air in the installation cannot escape
Water level below the intake port
Pressure pipe / hose diameter too small
(losses too high)
Non-return valve sticking in the pressure
port
Hose kinked / check valve closed
Suction strainer blocked / impeller blocked
Remedy
Check fuses, cables and electrical
connections.
Allow the pump to cool down, it will start
again automatically
Allow to cool down
Disconnect the pump from the mains and
remove from the shaft.
Remove the suction strainer and rinse the
suction strainer / impeller under running
water
Check float switch and ensure mobility
Place the pump at an angle in water briefly
until the air escapes.
Vent the installation / drain if necessary
Check the switch-off level
If possible, submerge the pump deeper
(observe the switch-off level)
Bigger dimensioning of the pressure pipe /
hose diameters
check function
Clear kink in hose / open check valve
Disconnect the pump from the mains and
remove from the shaft.
Remove the suction strainer and rinse the
suction strainer / impeller under running
water.
WILO SE 09/2008