⚡ 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

This error is triggered by a float or optical sensor in the drip tray, not by the actual water level. Error codes on Mr. Coffee machines usually point to a specific condition: a full drip tray, an empty water tank, a stuck brew unit, or scale buildup. The most common codes are listed in our Drip Tray Full Error guide — most are cleared by a power reset or a descaling cycle.

A code on the Mr. Coffee display is the machine naming its own fault. Start with the easiest fixes: reseat the tank, empty the drip tray, and power-cycle the machine. If the code returns, our Drip Tray Full Error guide lists the codes and their fixes.

Most Mr. Coffee error codes are warnings, not hardware failures. Check the drip tray, water tank, and brew unit first, then reset the machine. The common codes and their exact fixes are documented in our Drip Tray Full Error guide.