Pentair Autotrol 255 Logix 740-760 - Troubleshooting; Err. code

Installer Manual 255-LOGIX 740-760 - Troubleshooting
Ref. MKT-IM-001 / C - 08.10.2019 63 / 76
10. Troubleshooting
Err. code Cause Reset and recovery
ERR 1
Controller power has been connected
and the controller is not sure of the
operating status.
Reset controller.
See 6.4.4. Resetting the controller,
page 44.
ERR 2
Controller power does not match 50 or
60 Hz.
Disconnect and reconnect the power.
If problem is not solved, obtain an
appropriate controller or AC
transformer.
ERR3
Controller lost the position of
camshaft. Camshaft should be rotating
to find Home position.
Wait for 2 minutes: the controller
returns to Home position.
An hourglass icon flashes to indicate
that the motor is running.
Camshaft does not rotate.
Check:
• motor connections;
• if motor wire harness is connected
to the motor;
• if motor wire harness is connected
to the controller;
• optical sensor connection and
position;
• if motor and camshaft gears are
engaged.
If everything is connected, try
replacing in this order:
• wire harness;
• motor;
•optical sensor;
• controller;
See 9.4. Cleaning and maintenance,
page 54.
Camshaft rotates for more than 5
minutes to find Home position.
Check:
• optical sensor connection and
position;
• camshaft connection;
• camshaft slots cleanness.
If motor keeps rotating indefinitely,
replace the following components in
this order:
• wire harness;
• motor;
•optical sensor;
• controller.
See 9.4. Cleaning and maintenance,
page 54.