Problem, Causes And Solutions - Wilo Drain LP 40 Einbau- Und Betriebsanleitung

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8 Problems, causes and solutions
Problem
Pump does not run
Pump has no power
No suction
If no solution can be found, please contact your plumbing and heating specialist or your nearest
Wilo customer services or representative.
14
Causes
no voltage
Rotor blocked
Cable break
The pump sucks in air due to
an overly strong check the
function/adjustments of the
drop in the liquid level
Pump working against insu-
lating air cushion
Pressure-pipe blocked
Hose (suction side leaky)
Solutions
Check wires and fuses and/or switch auto-
matic circuit-breakers back on in distribu-
tion substation
Clean casing and impeller
Check cable resistance. If necessary, replace
cable. Only use original Wilo special cable!
Check the liquid level
Fill the pump housing with water.
Check and clean line
Repair or change suction hose.
Subject to technical alterations!