Spare Parts; Disposal - Wilo Medana CH1-L Einbau- Und Betriebsanleitung

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Faults
The pump is not functioning
The pump operates but does not
discharge any fluid
The pump discharges irregularly
Insufficient pressure
The pump is vibrating
The motor is overheating, the mo-
tor protection engages
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Spare parts

12

Disposal

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Spare parts
WARNING
Risk of burns
In case of high water temperatures and high system pressures, close the guard
valves upstream and downstream of the pump. First, allow pump to cool down.
WARNING
Risk of injury
Depending on the operating conditions of the pump or the installation (the temper-
ature of the discharged liquid and the volume flow), the pump assembly including
the motor may become extremely hot. There is a real risk of burns when coming into
contact with the pump.
Causes
No electrical power supply
The motor protection device has cut off the
power
Wrong direction of rotation
The piping or parts of the pump are obstructed
by foreign matter
Presence of air in the suction pipe
Suction pipe too narrow
The pressure at the pump inlet is insufficient
The suction pipe has a smaller diameter than
that of the pump
The strainer and the suction pipe are partially
blocked
Incorrect choice of pump
Wrong direction of rotation
The flow rate is too low, the suction pipe is
blocked
The valve is not sufficiently open
The pump is obstructed by foreign matter
Foreign matter in the pump
The pump is not firmly secured
Insufficient voltage
Foreign matter present, bearing damaged
Ambient temperature too high
If the fault cannot be resolved, please contact the Wilo customer service.
All spare parts should be ordered directly from the Wilo customer service. To prevent
errors, always quote the data on the pump's rating plate when making an order. The
spare parts catalogue is available at www.wilo.com
Information on the collection of used electrical and electronic products.
Proper disposal and appropriate recycling of this product prevents damage to the envi-
ronment and dangers to your personal health.
Remedies
Check fuses, switches and wiring
Eliminate any motor overload
Swap 2 phases in the power supply
Check and clean the piping and the pump
Make the suction pipe air-tight
Install wider suction pipe
Review the installation conditions and recom-
mendations described in this manual
The suction pipe must have the same diameter
as the pump suction opening
Dismantle and clean them
Install more powerful pumps
For the three-phase current version, swap
2 phases in the power supply
Clean the suction filter and the suction pipe
Open the valve
Clean the pump
Remove all foreign matter
Tighten the anchor screws
Check the fusible cut-outs, the wiring and the
connections
Clean the pump
Get the pump repaired by customer service
Provide cooling
WILO SE 02/2020