For the elimination of faults on an under pressure standing system the
pumps has to be set pressureless!
3. the pump is operating but does not supply water.
PossiBle caUses
eliMination
It is air in the system.
Vent the system and the pump.
the ball valve is closed
open the ball valve
4. the pump is making noises.
PossiBle caUses
eliMination
The pump capacity is too high.
choose a lower operating level
Air in the system
Vent the system and the pump.
FailurES,
caUsEs
and ElImInatIon
1. the pump does not supply
PossiBle caUses
eliMination
the pump is not connected on the power
supply.
Check the power supply and fuses or carry
out a voltage reset
(disconnect it from the power supply, wait
a minute and switch it on again)
the pump is blocked
maintenance
the motor is defect
the pump has to be replaced
2. the pump does not start or is operating irregular.
PossiBle caUses
eliMination
deposits inside of the pump
maintenance
24
EVEnES circulatinG pump EV-zup 15
