Descale Mode Keurig K55 Instruction Manual

The Keurig K55 is a single-serve coffee brewing system that requires periodic descaling to maintain optimal performance. Descaling removes mineral buildup from the internal water system, ensuring proper water flow, temperature, and brewing quality. Below are key sections for descale preparation, step-by-step process, troubleshooting, and maintenance guidelines.

Descaling Overview

Descale mode removes mineral deposits from internal components: Water reservoir, heating element, brew chamber, and internal tubing.

Preparation

Gather required materials and prepare machine for descaling process.

1. Empty water reservoir: Remove and discard any remaining water.
2. Remove K-Cup: Ensure brew chamber is empty.
3. Prepare descaling solution: Mix according to manufacturer instructions.
4. Position machine: Place on stable surface with drip tray installed.
5. Power on: Ensure machine is plugged in and powered.

WARNING! Use only Keurig descaling solution or approved alternatives. Do not use vinegar.

Descaling Process

Follow step-by-step instructions to activate and complete descale mode.

1. Enter descale mode: Press and hold 8oz and 10oz buttons simultaneously for 3 seconds.
2. Add solution: Pour prepared descaling solution into empty water reservoir.
3. Start cycle: Press brew button to begin first descale cycle.
4. Repeat cycles: Complete multiple brew cycles until reservoir is empty.
5. Wait period: Allow solution to sit in system for 30 minutes.

CAUTION! Do not interrupt power during descaling process.

Rinsing Procedure

• Empty Reservoir: Discard remaining descaling solution.
• Rinse Reservoir: Clean with fresh water thoroughly.
• Refill: Add fresh water to maximum fill line.
• Rinse Cycles: Complete 3-5 brew cycles with fresh water only.
• Final Check: Ensure water runs clear without chemical taste.
• Reset System: Press power button to exit descale mode.
• Test Brew: Make test beverage to confirm proper operation.

Controls and Indicators

Descale mode activation and monitoring through control panel interface.

Indicators: Red descale light signals need for cleaning. Buttons: Power, 6oz, 8oz, 10oz brew sizes. Descale Activation: Hold 8oz + 10oz buttons for 3 seconds. Status Lights: Flashing during process, solid when complete. Reset: Automatic after successful descale completion.

Troubleshooting

Common issues and solutions during descaling process.

1. Descale mode won't activate: Ensure proper button combination and timing.
2. Solution not dispensing: Check for clogs in water path.
3. Machine stops mid-cycle: Verify power connection and restart process.
4. Descale light remains on: Complete additional rinse cycles.

Tip: If issues persist, unplug machine for 2 minutes and restart.

Maintenance Schedule

Regular descaling prevents performance issues and extends machine life.

1. Frequency: Descale every 3-6 months depending on water hardness.
2. Indicators: Red descale light or slow brewing signals need for cleaning.
3. Water Quality: Use filtered water to reduce mineral buildup.
4. Additional Cleaning: Regular external cleaning and drip tray maintenance.
5. Filter Replacement: Change water filter every 2 months or 60 tank refills.

WARNING! Neglecting descaling can cause permanent damage to heating element.

Safety Precautions

Descaling involves chemicals and hot water; follow safety guidelines.

Descaling Solution

Use approved descaling solutions specifically formulated for Keurig systems.

CAUTION! Avoid skin contact with descaling solution. Rinse thoroughly if contact occurs.

Support Information

Keurig Customer Support: 1-866-901-2739. Website: www.keurig.com. Descaling solutions available at retailers and Keurig online store. Warranty: 1-year limited warranty. For additional troubleshooting, refer to Keurig K55 user manual or online resources.

Troubleshooting

Reset: Unplug machine for 2 minutes if descale process fails.

Service: 1-866-901-2739; www.keurig.com