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58
Circulating pump
LED
(first red LED)
R
Y
Y
Y
Y
On O
O
O
On
R
Y
Y
Y
Y
On O
O
On O
R
Y
Y
Y
Y
On O
On O
O
Solar circulation unit available head.
V1
Description
Pump blocked mechani-
cally
Abnormal situation (the
pump continues operating).
low power supply voltage
Electrical fault
(Pump blocked)
V3
V2
A1
Flow rate (l/h)
Diagnostics
The pump cannot restart au-
tomatically due to an anomaly
Voltage off range < 160 Vac
The pump is locked due to
power supply too low or seri-
ous malfunction
A3
Key:
A2
Vn = Available head
An = Pump absorbed power
Key:
1 - Function selection button
2 - Green (G) / red (R) LED
3 - Green (G) LED
4 - 3 yellow (Y) LEDs
Remedy
Wait for the pump to make automatic
release attempts or manually release
the motor shaft acting on the screw
in the centre of the head.
If the anomaly persists replace the
pump.
Check power supply
Check the power supply if the anom-
aly persists replace the pump
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