39
738.955 | 10.40
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The pump, which is connected to the controller,
is not running, although its switch-on conditions
have been fulfilled.
Secondary
symptoms
Possible cause / remedy
The pump symbol
rotates in the
display
• Pump connection cables not
connected or interrupted.
Have professional person-
nel check the cables.
The pump symbol
does not rotate
"max" in the tank
symbol blinks
•
•
Storage tank full
The pump symbol
does not rotate
Symbol for evapo-
rating collector
fluid flashes
•
•
Collector fluid evaporates
The pump symbol
does not rotate
Display is lit with a
red background
OFF flashes
•
•
•
Operating switch is set to
"Off"
Use the operating switch
to set the controller to
automatic operation.
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