SERVICE
Pentair
General Service Alarm
Display shows SERVICE or CALL FOR SERVICE; softener may still operate but indicates a detected fault.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Exceeded maximum regeneration attempts, Repeated valve motor stalls, Persistent sensor errors, Internal diagnostics failure on control board
How to Fix / Troubleshooting
Safety: Always disconnect power before opening the control head. Close water valves if you will disassemble the valve.
- Check event history: Many Pentair controllers store error history. Enter diagnostics to view recent error codes that triggered the SERVICE message.
- Address root cause: Resolve any underlying ERR codes (motor, meter, salt sensor, etc.) according to their specific procedures.
- Reset service alarm: After repairs, use the control’s reset or clear-service function (refer to your Pentair manual) to clear the SERVICE message.
- Board replacement: If SERVICE appears with no specific error and all sensors and mechanics test good, the Pentair electronic control board may have an internal fault and require replacement.
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Repair Difficulty
Medium
3/5
Required Part
Pentair electronic control board
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