Bunn No Automatic Fill

On plumbed-in Bunn coffee makers, the unit does not fill with water 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

Closed water supply valve, Clogged inlet screen, Failed fill solenoid valve, Faulty water level probe or sensor

How to Fix / Troubleshooting

Safety: Unplug the brewer and shut off water supply before servicing the inlet system.

Steps:

  • 1. Verify water supply: Confirm the shutoff valve is open and that there is water pressure at the connection.
  • 2. Clean inlet screen: Remove the inlet fitting or solenoid and clean the mesh screen of debris.
  • 3. Test fill solenoid: Measure coil resistance and listen for a click when the unit attempts to fill. Replace the solenoid if the coil is open or the valve is stuck.
  • 4. Check level probe: Clean the water level probe and ensure its wiring is intact so the control knows when to call for fill.
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Repair Difficulty

Medium 3/5

Required Part

Fill Solenoid Valve
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