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How To Repair A Coffee Brewer Thats Not Holding Temperature


Are you having trouble with your coffee brewer not holding temperature? This is a common issue that many coffee aficionados come across, due to faulty heating elements or thermostats.

Our article will provide you step-by-step instructions on how to repair this and bring back the warmth in your brewed coffee. Let’s dive in and turn those frustrating mornings into refreshing ones!

Quick Takeaways

  • A coffee brewer may not hold temperature due to a faulty heating element, malfunctioning thermostat, or dirty/rusty warming plate.
  • Troubleshooting steps include testing the heating element for faults, checking and replacing the thermostat if necessary, and cleaning or replacing the warming plate.
  • To fix a coffee brewer that doesn’t heat up, you can disassemble it, replace faulty components like heating elements or thermostats, and then reassemble it.
  • Additional tips include ensuring proper power supply and regularly maintaining and cleaning your coffee brewer. If needed, seek professional help from a qualified technician.

Common Reasons for a Coffee Brewer Not Holding Temperature

A photo of a coffee brewer with disassembled parts and a dirty warming plate.

There are a few common reasons why your coffee brewer may not be holding temperature, such as a faulty heating element, malfunctioning thermostat, or dirty or rusty warming plate.

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Faulty heating element

Your coffee brewer can stop holding temperature because of a bad heating element. This part heats the water in your machine. If it breaks, your coffee will not be hot enough. This is common in Bunn and Keurig coffee makers.

A blown fuse, too much dirt or even a broken thermostat can also cause this problem. To solve it, you need to check each part carefully. Replace any parts that are broken or dirty with new ones for better results.

Malfunctioning thermostat

A bad thermostat in your coffee brewer could make your morning cup taste off. It can stop the water from getting hot enough to brew properly. You might also get a cold cup because the thermostat thinks the water is warm when it’s not.

So, ensure to keep an eye on your coffee maker’s heat.

If you see any heating problems, check the thermostat first. It controls how hot your coffee gets and keeps it at that level while brewing. A faulty temperature gauge can cause heat issues in your machine.

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Find out if there is a problem with the power supply or if the thermostat itself is broken. Then, take steps to fix it quickly for a perfect cup of coffee every time.

Dirty or rusty warming plate

A dirty warming plate on your coffee brewer can cause trouble. If left unclean, it may get rusty and this rust can stop heat from spreading well. To fix this, you need to scrub the dirt off first.

You can use baking soda with white vinegar for cleaning. But if the plate is too rusty, buy a new one to replace it. Cleaning the warming plate often stops rust and dirt from building up again so your coffee stays hot.

Troubleshooting Steps for Repairing a Coffee Brewer

Technician inspects coffee brewer's internal components, focusing on heating element.

To troubleshoot and repair a coffee brewer that is not holding temperature, you can follow these steps: test the heating element for any faults, check and replace the thermostat if necessary, and clean or replace the warming plate to ensure proper temperature maintenance.

Testing the heating element

To determine if the heating element in your coffee brewer is working properly, you can use a multimeter to test it. First, make sure the machine is unplugged and access the back panel where the heating unit is located.

Disconnect the circuit that powers the heating element and set your multimeter to measure continuity or resistance. Next, touch one probe of your multimeter to each terminal of the heating element.

If there is no continuity or a high resistance reading, it means that the heating element is faulty and needs to be replaced. This simple test can help identify any issues with your coffee brewer’s heating element before moving on to other troubleshooting steps.

Checking and replacing the thermostat

To troubleshoot a coffee brewer that is not holding temperature, checking and replacing the thermostat is an important step. The thermostat controls the heating element of the coffee maker and helps maintain the desired temperature for brewing.

To check if the thermostat is functioning properly, you can use a continuity tester or multitester. If there is no continuity, it indicates a faulty thermostat that needs to be replaced.

Snap disc and capillary thermostats are commonly used as alternative options for replacing a coffee maker’s thermostat. By following these diagnostic steps and utilizing appropriate replacements, you can fix your coffee brewer’s temperature control issue efficiently.

Cleaning or replacing the warming plate

If your coffee brewer is not holding temperature, one of the troubleshooting steps you can take is cleaning or replacing the warming plate. This part of the coffee brewer can get dirty or rusty over time, affecting its ability to maintain temperature.

You can clean the warming plate by using a soft cloth and warm, soapy water if it’s dirty. If there are burnt-on coffee stains, try scrubbing them with a damp sponge and baking soda.

If cleaning doesn’t solve the problem, you may need to replace the warming plate altogether.

Steps to Fix a Coffee Brewer That Doesn’t Heat Up

To fix a coffee brewer that doesn’t heat up, you can follow these steps to troubleshoot and repair the issue. Read on to learn how to get your coffee brewer back up and running at the perfect temperature!

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Disassembling the coffee brewer

To fix a coffee brewer that isn’t heating up, you’ll need to disassemble it. Start by unplugging the machine and removing any removable parts like the carafe and filter basket. Look for screws or clips holding the outer casing together and carefully remove them using a screwdriver or pliers.

Once the casing is off, locate the heating element and thermostat inside. Take note of their positions before disconnecting any wires attached to them. Remember to label these wires so you know where they go when reassembling later.

With all necessary components disconnected, you can now replace any faulty parts or clean out any debris blocking the heating element’s function. Finally, put everything back together in the reverse order of disassembly, making sure all wires are securely connected and casings are properly fastened before testing your repaired coffee brewer.

Replacing faulty components

To fix a coffee brewer that doesn’t heat up, you may need to replace faulty components. One common issue could be a defective heating element. If the heating element is not working properly, it won’t heat up the water in your coffee brewer.

You can test the heating element using a continuity checker or multimeter. If it shows no continuity, then it’s time to get a new one.

Another component that might be causing temperature control issues is the thermostat. A faulty thermostat can prevent the coffee brewer from reaching and maintaining the desired temperature.

To check if this is the problem, use a multimeter to test its functionality. If it’s not working as expected, replace it with a new one.

Lastly, don’t forget about the warming plate. Over time, dirt and rust can accumulate on the warming plate and affect its performance. Cleaning may solve this issue; however, if there are any visible damages or signs of wear and tear on the plate, replacing it would be best.

Reassembling the coffee brewer

After replacing the faulty components in your coffee brewer, it’s time to put everything back together. Start by carefully following the reverse steps of disassembling. Make sure to reattach any screws or latches that were removed and ensure a secure fit for all parts.

Once you have reassembled the coffee brewer, double-check that everything is properly connected and aligned. This includes ensuring that the heating element, thermostat, and warming plate are correctly installed.

Finally, plug in the coffee brewer and test it to see if it now heats up properly.

Additional Tips for Coffee Brewer Repair

Ensure that your coffee brewer is properly plugged into a functioning power supply to avoid any electrical issues that may affect the temperature control. Regularly clean and maintain your coffee brewer according to the manufacturer’s instructions to prevent buildup of residue or debris that can interfere with proper heating.

If you’re unsure about repairing it yourself, don’t hesitate to seek professional help from a qualified technician who specializes in small appliance repairs.

Ensuring proper power supply

To ensure your coffee brewer is getting the right amount of power, there are a few things you need to check. First, make sure the electrical connection is secure and that the power cord is not damaged.

Sometimes, the wiring inside may be broken even if the cord looks fine on the outside. Second, verify that your coffee maker is plugged into an outlet with proper voltage. If it’s not getting enough power, it won’t be able to heat up properly.

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Lastly, for Bunn commercial coffee makers, ensure they are connected to a cold water supply with correct water pressure. Checking these factors can help fix temperature problems with your coffee brewer without any hassle or complications.

Regular maintenance and cleaning

Regular maintenance and cleaning are crucial for keeping your coffee brewer in top shape. By performing routine upkeep and sanitation, you can ensure that your coffee equipment functions optimally and produces delicious cups of coffee every time.

It is recommended to perform daily care and maintenance on your coffee brewer. This includes wiping down the exterior surfaces, cleaning the brew basket, and checking for any visible debris or blockages.

Additionally, weekly upkeep and cleaning should be done to maintain the quality of your espresso machine, coffee brewer, and grinder. During this process, make sure to inspect the water filter for any clogs or build-up that may affect the taste of your coffee.

To keep your coffee brewer running smoothly, it is also important to use maintenance products designed specifically for JURA machines regularly. These products help remove scale build-up from internal components and ensure optimal functioning.

When using maintenance products, always follow the instructions provided to achieve the best results.

Seeking professional help if needed

If you’re facing difficulties in repairing your coffee brewer or if the troubleshooting steps don’t solve the problem, it’s a good idea to seek professional help. Certified coffee brewer technicians and experienced specialists can provide expert assistance for repairing your coffee brewing equipment.

They have the knowledge and skills to diagnose and fix complex issues that may be causing your coffee brewer not to hold temperature properly. Coffee maker repair services offer reliable solutions and ensure that your machine is functioning correctly.

Professional repair services also provide regular maintenance and cleaning, helping to prevent future problems with your coffee brewer.


In conclusion, troubleshooting and repairing a coffee brewer that is not holding temperature can be done by checking the heating element, thermostat, and warming plate. Testing these components and replacing them if necessary will help ensure your coffee brewer heats up properly.

Remember to also perform regular maintenance, such as cleaning and descaling, to keep your coffee maker in good working condition. If you’re unsure or need assistance, it’s best to seek professional help for repairs.

Enjoy a hot cup of coffee every time with these simple steps!


1. Why is my coffee brewer not holding temperature?

Your coffee brewer may not be holding temperature due to issues with the heating element, thermostat, or water flow.

2. Can I fix the temperature issue in my coffee brewer myself?

Yes, you can try fixing the temperature issue in your coffee brewer by checking and cleaning the heating element, adjusting the thermostat settings, or descaling the machine. However, if these steps don’t work, it’s best to contact a professional for repair.

3. How do I clean the heating element in my coffee brewer?

To clean the heating element of your coffee brewer, unplug it and let it cool down completely. Then use a brush or cloth to remove any debris or buildup on the surface of the heating element.

4. What can cause poor water flow in my coffee brewer?

Poor water flow in your coffee brewer can be caused by clogs or blockages in the water lines, mineral deposits on internal parts, or a malfunctioning pump.

5. How much does it cost to repair a coffee brewer that’s not holding temperature?

The cost of repairing a coffee brewer that’s not holding temperature can vary depending on factors such as the brand and model of your machine and what specific components need to be fixed or replaced. It’s best to consult with a professional for an accurate estimate.

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About the author


Samuel is a coffee lover and a writer. He's travelled extensively throughout Southeast Asia and has soaked up the sun, the culture, and of course - the coffee. He loves to write about his experiences, and he hopes to travel even more in the future.

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