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DeltaControl – Operation
N 15-M – Subject to technical changes
02.17
14
EN
Status Readouts
The controller has two LEDs next to the
display.
The meaning of the various signals is
explained in the table below.
LED display
Display
Meaning
Measures
Green, illuminated
–
Mains power ON
–
Green, flashing
–
Solar pump ON
–
Red, flashes 1x
Collector sensor
(T1) interrupted
•
Check connection.
•
Check sensor
resistance and
replace sensor if
necessary.
Red, flashes 2x
x
Collector sensor
(T1) short circuit
Red, flashes 3x
Storage tank sen-
sor (T2) interrupted
Red, flashes 4x
x
Storage tank sen-
sor (T2) defective
Red, illuminated
–
Circulation error,
no flow
•
Check wiring.
•
Replace pump.
•
Bleed system.
–
Error with pump
connection
–
Pump defective
–
Air in the system