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Water pressure switch not actuated + water flow switch not actuated = switch-off due to dry running
and indication of fault (delay 8–15 seconds)
Common causes of errors
1. First problem case:
The pump control switches off and displays failure/error even though water was pumped suc-
cessfully before. After a reset, this error will reoccur immediately or after a short time.
Possible causes:
a) The water pressure of the pump used is not sufficient to operate the water pressure
switch. (Causes can be a blockage, a worn pump body or a pump that is too weak).
b) The water pressure switch in the pump control is blocked. (Cleaning with clean wa-
ter can solve the problem or the housing of the pressure switch in the pump control
must be cleaned. Sand and other sediments may have deposited here.)
2. Second problem case:
The pump control leaves the pump permanently switched on regardless of whether the tap is
open or closed.
Possible causes:
a) The installation position of the pump control was not taken into account. This does
not reset the water flow switch and it is permanently actuated. (Check installation
position and correct if necessary.
b) The water flow switch at the pump control input is permanently actuated. This can
be caused by contamination, calcification or a foreign body. (An optical check con
firms this problem and can be corrected by cleaning.)
© by WilTec Wildanger Technik GmbH
http://www.WilTec.de
http://www.aoyue.eu
http://www.teichtip.de
Item 50612, 51249
Page 5
03
2021-1
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