SERVICE
Whirlpool Pro Series General System Fault / Control Lockout

Display shows SERVICE or CALL FOR SERVICE and unit stops operating automatically

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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

Multiple unresolved error conditions, Control board self-test failure, Internal sensor disagreement, Firmware fault

How to Fix / Troubleshooting

Safety: Disconnect power before opening the control housing.

Steps:

  • Note any sub-codes: Some Whirlpool Pro Series models display a secondary code with SERVICE. Record this for reference.
  • Power reset: Unplug the unit for 10–15 minutes, then reconnect. Observe whether the SERVICE message returns immediately or only after attempting regeneration.
  • Check for obvious issues: Inspect wiring harnesses, motor, flow meter, and brine line for disconnections or visible damage.
  • Run manual regeneration: If allowed, start a manual regeneration and listen for abnormal noises or stalls that could indicate a mechanical fault.

Resolution: If the SERVICE message persists and no specific component fault can be identified, the electronic control board is likely defective. Replacement is recommended, or contact a qualified Whirlpool service technician for advanced diagnostics.

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Repair Difficulty

Professional Required 5/5

Required Part

Electronic Control Board
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