⚡ TL;DR — Quick Answer

Empty the Mr Coffee drip tray. Wipe the metal contacts with isopropyl alcohol.

What Causes Drip Tray Full Error?

Mr. Coffee machines are affordable drip brewers with simple mechanical components.

Step-by-Step Fix

Follow these steps specifically for Mr Coffee machines:

  1. Empty the Mr Coffee drip tray. Wipe the metal contacts with isopropyl alcohol.
  2. Reinsert firmly until you hear a click. A loose tray triggers the full sensor.
  3. Check the microswitch. On Mr Coffee machines, it can corrode from moisture.
  4. Reset the machine. Some Mr Coffee models require a power cycle after tray reinsertion.

Mr Coffee Pro Tip

Expert advice: If the machine brews slowly, check the spray head for mineral deposits blocking water flow.

Model-Specific Notes

These steps apply to: Mr. Coffee 12-Cup, Mr. Coffee Café Barista, Mr. Coffee DR series, Mr. Coffee BVMC, Mr. Coffee EM600. For exact part numbers, consult the Mr Coffee parts catalog at Mr Coffee Support.

Preventive Maintenance

Run a vinegar cycle monthly to remove hard water deposits.

Popular Mr Coffee Models

When to Call a Professional

If these steps don't resolve the issue, contact an authorized Mr Coffee service center. Complex electrical or hydraulic problems require professional diagnosis.

Frequently Asked Questions

Usually a dirty sensor or misaligned tray. Empty and clean the tray, then reinsert firmly.

The sensor contacts are dirty or corroded. Clean with isopropyl alcohol.

Not recommended. This safety feature prevents water damage. Fix the sensor instead.

Remove the drip tray, locate the metal contacts, and clean with isopropyl alcohol and a soft cloth.

Sensor may be faulty or the tray isn't seated properly. Ensure it clicks into place.