Why Is My Keurig Not Heating Water? [Solved]

Keurig Not Hot Enough

Last Updated on November 25, 2023 by Timothy Byron Smith

Feeling the frustration of a not-so-hot cup from your trusty Keurig? Isn’t it just the worst when your coffee maker decides to play it cool, literally, when all you want is that piping hot brew to kickstart your day?

Well, if you’ve been scratching your head wondering why your Keurig won’t heat or why it’s not heating water, worry not! There might be a sneaky reason behind this caffeinated chaos— ‘Coffee not hot enough’, this can be due to high-altitude mode, wonky water pumps, or some gunk buildup. Confusing, right?

But hold off on giving your Keurig the boot! We’re here to spill the beans on how to make Keurig hotter and turn things around to reclaim that delightful, steamy cup of goodness you’ve been missing. Ready to uncover the secrets to reviving your Keurig’s heat game? Let’s dive into the potential reasons behind this issue and explore effective solutions.

Probable Reasons:

Most commonly, a Keurig not heating water might be due to a blown fuse, faulty thermostat, or a malfunctioning heating element. These components play crucial roles in ensuring the machine reaches the optimal brewing temperature, and any malfunction can disrupt this process.

High-Altitude Mode Impact on Keurig Temperature

Keurig coffee machines are often shipped in high altitude mode, impacting their heating capability. This mode lowers the machine’s temperature, resulting in inadequately heated water for brewing coffee. While it prevents overheating, it creates a substantial difference for coffee lovers, serving coffee at a colder temperature than preferred.

Water Pump Dysfunction and Heating

The malfunctioning water pump in Keurig machines can be a significant cause of insufficiently heated coffee. This issue, often overlooked, directly affects the water flow and, consequently, the heating system. Ensuring the proper functioning of the water pump becomes crucial in maintaining the machine’s heating efficiency.

Impact of Clogged Residue on Keurig Heating

Neglecting regular cleaning and descaling can lead to coffee grounds and limescale build-up, causing clogs in the Keurig. This residue accumulation impedes the machine’s proper functioning, affecting its heating capability and resulting in sub-optimally heated coffee.

Quick Fixes for Heating Issues

Resolving this problem often involves straightforward remedies such as replacing blown fuses, repairing or replacing faulty thermostats, and ensuring the water level is adequate for proper heating. Achieving a near-boiling temperature of just under 212 degrees Fahrenheit is essential for brewing the perfect cup from your Keurig.

Steps to Fix a Keurig Not Heating Up: Possible Solutions

Resetting the brewer entirely can be the initial step toward troubleshooting. By following specific procedures like emptying the internal water tank and adding water to the cold water reservoir, you can attempt to reset the brewer for the machine to dispense hot water. In certain cases, a method known as the “Spanking Method” has proven effective in rejuvenating the machine’s functionality.

The ‘Spanking’ Method: A Unique Fix

An unconventional but effective method involves unplugging the Keurig, removing and rinsing the tank thoroughly, then gently ‘spanking’ its bottom several times to rectify potential blockages. This method can surprisingly prompt the machine to start heating water again.

Deactivating High-Altitude Mode:

Disabling high-altitude mode involves simultaneously pressing the “eight-ounce” and “strong” buttons while the machine is turned off. This straightforward process allows the machine to brew coffee at an ideal temperature.

Proper Descaling Routine:

Regular descaling is paramount. Using a reliable descaling agent and meticulously cleaning the water tank and clogged surfaces can drastically improve the machine’s brewing temperature.

Pre-Warming the Machine:

Running a cycle with plain water before brewing helps the machine warm up adequately, allowing for better coffee extraction and a hotter cup.

Extended Brew Button Press:

Holding down the brew button for an extended duration initiates a longer brewing process, enabling the machine to reach optimal temperatures for a hotter brew.

Resetting the Keurig:

A system reset can rectify any setting malfunctions, ensuring the machine operates at its default settings for the best brewing temperature.

Hot Water Extraction from Keurig

For those seeking hot water specifically from their Keurig, a few simple steps suffice:

  1. Turn on the machine and fill the water reservoir.
  2. Place a cup on the drip tray and remove any coffee pod from the machine.
  3. Select the cup size and initiate the dispensing of hot water.

Preventive Measures to Avoid Future Issues

Maintenance is key! Regularly cleaning the Keurig to remove limescale, addressing clogs, and periodically resetting the brewer can significantly contribute to its smooth operation. Tackling issues as they arise rather than allowing them to escalate is a proactive approach to ensuring uninterrupted coffee brewing.

Understanding Keurig’s Water Heating Process

Keurigs utilize an external cold water tank and an internal heating tank. Upon activation, a pump draws water from the cold tank into the heating tank, where the heating system preheats the water to a maximum temperature of 192 degrees Fahrenheit in just a few minutes. This preheated water brews the coffee via an entry needle and K-Cup pods, filtering through a paper filter and into your cup.

Factors Affecting Keurig’s Water Temperature

While Keurigs don’t boil water, they do heat it significantly, reaching a maximum temperature of 192 degrees Fahrenheit. Yet, the temperature of the brewed coffee can decrease rapidly depending on the type of cup used. Insulated thermos travel mugs are effective in retaining heat longer than regular travel mugs.

Optimizing Keurig for Hotter Coffee

For those seeking hotter coffee, several methods can be employed. Disabling the high altitude setting (for newer models) or adjusting brew temperatures in the settings can ensure a hotter brew. Using thermos travel mugs with double-walled insulation can also maintain the coffee’s temperature for an extended period.

Safety Measures When Adding Water

While warm water can be added to the reservoir, it’s vital to avoid adding extremely hot water, as this can potentially damage the tank. The plastic composition of the water tank is designed for cold water, and excessively warm water might warp or damage it.

Repairing the Heating Element

Attempting to repair the heating element in a Keurig by oneself is not feasible. Seeking assistance from Keurig’s customer service or utilizing warranty options for repair or replacement is the recommended course of action if issues with the heating element arise.

Effects of a Non-Heating Coffee Maker

A Keurig that fails to heat up can result in either complete cessation of operations or the production of inadequately brewed, cold coffee. This becomes particularly problematic when certain coffee types require hot water to steep and release the flavors properly.

Keurig’s Water Heating Temperature

Keurigs are typically set to heat water to a temperature of 192 degrees Fahrenheit. This standard temperature ensures safety while delivering a satisfyingly hot cup of coffee.

Tips for Ensuring Hotter Coffee from a Keurig

Several tips and tricks, such as preheating cups, running an initial cycle brew, using insulated cups, or even microwaving the brewed coffee, can help maintain higher temperatures for longer durations.

Retaining Coffee Heat for Longer Durations

To maintain the heat of brewed coffee for extended periods, several tips can prove useful:

  • Use double-layered paper or foam cups to retain heat.
  • Opt for mugs or cups with smaller lids to reduce heat dissipation.
  • Cup warmers and preheating ceramic cups before brewing help keep the coffee hotter for longer durations.

Conclusion: Keurig Not Heating Coffee Properly

Ensuring your Keurig consistently produces hot, delicious coffee involves understanding its mechanisms, implementing maintenance routines, and using simple yet effective tricks to enhance temperature. By addressing issues promptly and adopting preventive measures, you can relish that perfect cup of coffee every time.


  1. Q: Why is my Keurig not heating up the water? A: Potential issues include blown fuses, faulty thermostats, or a malfunctioning heating element.
  2. Q: Can I add hot water to a Keurig? A: It’s advisable to add warm water but avoid extremely hot water as it may damage the reservoir.
  3. Q: How do I make my Keurig coffee hotter? A: Disable altitude settings, adjust brew temperatures, use insulated mugs, or preheat cups for hotter coffee.
  4. Q: Is it possible for a Keurig to make coffee too hot? A: Some models might produce overly hot coffee, but settings adjustments can help avoid excessively high temperatures.
  5. Q: What should I do if my Keurig consistently produces cold coffee? A: Contact customer service, check settings, and attempt a system reset to address heating issues.

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