Pentair Evolio 255 Series - Valve

Installer manual Evolio 255 740-760 - Troubleshooting
80 / 90 Ref. MKT-IM-037 / D - 25.10.2021
Err. code Cause Solution
ERR3 Camshaft rotates for more than 5
minutes to find Home position.
Check:
• Optical sensor connection and
position.
• Camshaft connection.
• Camshaft slots cleanness.
Camshaft rotates for more than 5
minutes to find Home position.
If motor keeps rotating indefinitely,
replace the following components in
this order:
• Wire harness.
• Motor.
• Optical sensor.
• Controller.
• See Cleaning and maintenance
[
→
Page61]
- - : - - Power failure occurred.
Press to reset the time.
Controller will not
regenerate
automatically.
AC transformer or motor are not
connected.
Connect the power.
Defective motor. Replace motor.
Turbine blocked or defective and
calendar override set to off.
Check turbine and controller settings.
Controller
regenerates at
wrong time of day.
Controller set incorrectly. Correct time setting according to
instructions.
See Regeneration time [
→
Page43].
9.2 Valve
Issue Cause Solution
Flowing or
dripping water at
drain or brine line
after
regeneration.
Valve stem return spring is weak. Replace the spring.
Valve disc cannot close because of
debris.
Remove debris.