Operation and maintenance manual AQUAmax
®
BASIC/CLASSIC
ATB WATER GmbH, Südstraße 2, D-32457 Porta Westfalica, www.atbwater.com /
Art.-No.: 9060 0210 / Status: 30.01.2019 / Page 28 from 40
Fault Possible
cause
Rectification
There is no indication on the
control display.
•
The plant is without power.
•
Check pre-fusing and/or
residual current circuit
breaker.
•
The display is defective.
•
Call
Service.
Acoustic alarm sounds. There
is no indication on the control
display.
•
The plant is without power.
UVS
®
has triggered.
•
Check pre-fusing and/or
residual current circuit
breaker.
•
The display is defective.
•
Call
Service.
“Fault” with the description of
the electrical unit involved
appears on the display.
•
The unit or the complete
AQUA
max
®
is not
connected with the control
system.
•
Connect the appropriate
unit.
•
A screw terminal in the
cable distribution box or on
the terminal strip of the
control unit is not correctly
tightened, so that the
connection is interrupted.
•
Have the contact points and
the cabling checked by an
electrician.
•
The connection cable from
the electrical unit to the
control box is interrupted.
•
Defect rectification see
above.
•
The fine fuse of the
corresponding unit has
triggered.
•
Change fuse.
•
The water level in the
aeration stage is so low
that the pump runs dry.
•
Defect rectification see
above.
•
The corresponding unit is
blocked or runs rough
(check power
consumption).
•
Remove AQUA
max
®
clear
blockages.
•
The corresponding
electrical unit is defective.
•
Call Service.