46
47
Circulating pump LED
(first red LED)
R
Y
Y
Y
Y
Pump blocked mechanically
On O
O
O
On
R
Y
Y
Y
Y
Abnormal situation (the pump
continues operating).
On O
O
On O
low power supply voltage
R
Y
Y
Y
Y
Electrical fault
(Pump blocked)
On O
On O
O
Solar circulation unit available head.
V2
V1
Description
The pump cannot restart automatically
due to an anomaly
Voltage off range < 160 Vac
The pump is locked due to power
supply too low or serious malfunction
V3
A1
Flow rate (l/h)
Diagnostics
A3
Key:
A2
Vn = Available head
An = Pump absorbed power
82
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 anomaly persists
replace the pump
48