ADD WATER (PLUMBED MODE)
Keurig Plumbed Water Supply Detection Failure

On Keurig commercial/plumbed models, “ADD WATER” appears even though the unit is connected to a water line.

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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

Closed or partially closed supply valve, Clogged inlet filter screen, Faulty inlet solenoid valve, Flow meter not detecting line water

How to Fix / Troubleshooting

Safety first: Turn off power and shut off the water supply before disconnecting any water lines.

  • Verify water supply: Ensure the building water valve feeding the brewer is fully open and water pressure is adequate.
  • Check inlet filter: Remove and clean or replace any inline filter or screen at the brewer's water inlet.
  • Run prime/flush mode: Many commercial Keurigs have a prime or flush function. Run this to purge air and confirm flow.
  • Listen for solenoid click: When calling for water, you should hear the inlet valve click. No sound suggests a failed solenoid or control signal.
  • If no improvement: The inlet valve or flow meter may need replacement by a technician.
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Repair Difficulty

Hard 4/5

Required Part

Inlet Solenoid Valve
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