
If your Keurig K-Express Essentials Plus coffee maker is not working as expected, it can be frustrating. This troubleshooting guide will walk you through the most common issues and how to fix them with step-by-step instructions. Whether it’s a water supply issue, brewing malfunction, or descaling alert, we’ve got you covered.
The Keurig K-Express Essentials Plus is a popular single-serve coffee maker designed for quick and easy brewing. However, like all appliances, it can encounter issues that may prevent it from functioning optimally. Regular maintenance and understanding common troubleshooting steps can help keep your brewer working smoothly.
Common Problems and Solutions with Keurig K-Express Essentials Plus Single-Serve Coffee Brewing Machine
1. Water Doesn’t Flow
Cause: Clogged Needles or Water Reservoir Issues
If water doesn’t flow during brewing, the cause could be a clogged needle or issues with the water reservoir.
Solution:
- Check the Water Reservoir: Ensure the water tank is correctly seated and filled to the max line. If it’s not aligned properly, water won’t flow.
- Clear the Needles: The K-Cup® pod holder and exit needle may become clogged. Use a paperclip or similar tool to carefully clear the needles from any coffee grounds or debris. Tip: Always rinse the water reservoir weekly with warm soapy water to prevent mineral buildup.
2. Coffee Maker Leaking Water
Cause: Damaged Water Reservoir or Loose Parts
A common issue is water leaking during or after brewing. This may happen if the water reservoir is not properly attached or there are cracks in the reservoir.
Solution:
- Inspect the Reservoir: Remove the water reservoir and check for cracks or damage. Replace it if necessary.
- Check the Connection: Ensure that the water reservoir is securely placed on the base of the coffee maker. If it’s loose, water may leak out during brewing. Tip: Always check that the water reservoir is properly seated before use.
3. No Power or Won’t Turn On
Cause: Power Connection or Malfunction
If the coffee maker won’t turn on, the issue could be a faulty power connection or a malfunction within the appliance.
Solution:
- Check Power Cord and Outlet: Ensure the power cord is securely plugged into the wall outlet. Try using a different outlet to rule out any issues with the current one.
- Press Power Button: If the machine doesn’t turn on, make sure the power button is pressed properly. A short press may not turn the unit on, so try holding it for a few seconds. Tip: Unplug the coffee maker for 1 minute to reset it, then plug it back in and try turning it on again.
4. Brews Inconsistent Amounts of Coffee
Cause: Brew Size Selection or Scale Build-up
If your coffee maker brews too little or too much coffee, the issue could be related to the brew size settings or mineral buildup affecting the machine’s performance.
Solution:
- Check Brew Size: Make sure you select the correct brew size before pressing the brew button (6 oz, 8 oz, or 10 oz).
- Descale Your Coffee Maker: Mineral buildup from hard water can clog the internal mechanisms of the coffee maker. Perform the descaling procedure to clear any build-up. This is especially important if you’ve noticed any reduction in brew size. Tip: Keurig recommends descaling the brewer every 3 months or when the “Descale” light turns on.
5. Descale Light Stays On
Cause: Mineral Buildup or Incomplete Descaling
The “Descale” light on your Keurig K-Express Essentials Plus will illuminate when mineral buildup has been detected. If the light stays on after descaling, the process may not have been completed correctly.
Solution:
- Follow the Descaling Procedure: Press and hold the 6 oz and 10 oz buttons together for 3 seconds to activate Descale Mode. Follow the full descaling procedure as outlined in your manual, using Keurig® Descaling Solution and fresh water. This should take about 15 minutes. Descaling Steps:
- Empty the water reservoir.Add Keurig® Descaling Solution, followed by water, into the reservoir.Press the 6 oz and 10 oz buttons for 3 seconds to begin the descaling cycle.Continue brewing until the “Descale” light turns off.

Maintenance Tips for Optimal Performance
- Weekly Cleaning: Clean the water reservoir and drip tray with warm, soapy water to keep your Keurig free from debris. Do not use distilled water, as it can damage the internal components.
- Descale Every 3 Months: Follow the descaling instructions in your manual to maintain the performance of your coffee maker and improve the taste of your coffee.
- Use Keurig® Water Filters: These filters help reduce the buildup of minerals, ensuring better tasting coffee and prolonging the life of your coffee maker.

When to Call for Support
If you’ve tried all the troubleshooting steps and your Keurig K-Express Essentials Plus still isn’t working, it may be time to contact customer support for further assistance. You can reach Keurig customer service at 1-866-901-BREW (2739), or visit Keurig Support.

FAQs
1. How do I reset my Keurig K-Express Essentials Plus?
To reset your Keurig, unplug the machine for 1 minute, then plug it back in. This can help resolve minor software glitches.
2. Can I use any type of water in my Keurig K-Express Essentials Plus?
No, Keurig recommends using fresh water, but not distilled water. Using the wrong type of water can damage the internal components.
3. Why is my coffee maker brewing only a small amount of coffee?
This could be caused by a clogged needle, incorrect settings, or mineral buildup. Try descaling the coffee maker or cleaning the needles.
4. How do I activate High Altitude Brewing Mode?
To enable High Altitude Mode, press and hold the Brew Over Ice button and the 8 oz button for 3 seconds. The 10 oz button will illuminate to confirm the mode has been activated.
5. How do I brew over ice?
Fill a tumbler with ice (avoid using glass), place it on the drip tray, and insert a K-Cup® pod. Select the Brew Over Ice button to start brewing.
Conclusion
Following this step-by-step guide should help you fix any issues with your Keurig K-Express Essentials Plus coffee maker. Regular cleaning and maintenance are key to ensuring that your coffee maker continues to brew your favorite beverages at their best. If problems persist, contact Keurig customer support for further assistance.
Here’s a short troubleshooting table for your Keurig K-Express Essentials Plus coffee maker:
Issue | Possible Cause | Solution |
---|---|---|
Water Doesn’t Flow | Clogged needles or improperly seated water reservoir | Clean needles, check water reservoir connection |
Leaking Water | Damaged reservoir or loose parts | Inspect the reservoir for cracks, ensure it’s securely seated |
No Power | Power cord connection or malfunction | Check the power cord, try a different outlet, reset the coffee maker |
Inconsistent Brew Amount | Incorrect brew size setting or mineral buildup | Select the correct brew size, descale the coffee maker |
Descale Light Stays On | Incomplete descaling procedure | Follow the full descaling procedure, repeat if necessary |
By understanding the potential issues and their solutions, you can ensure that your Keurig K-Express Essentials Plus continues to provide you with a great coffee experience every time.
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