Keurig coffee maker turn-on problems

Nothing beats the convenience and speed of a Keurig coffee maker, but what if it won’t turn on when you need your caffeine fix the most? From frustrating power failures to sudden shut-offs mid-brew, Keurig machines can present a range of turn-on problems that disrupt your daily routine.

In this article, we’ll explore the most common causes of Keurig turn-on problems and provide practical solutions to help you enjoy a hassle-free coffee experience. Don’t let a faulty power cord or a simple oversight ruin your day; read on to troubleshoot your Keurig like a pro.

What does Keurig say about this issue?

First, ensure the brewer is properly plugged into the outlet and that other appliances work in the same outlet. If other appliances fail to turn on, there could be an issue with the outlet itself. You can also try plugging the brewer into a different kitchen outlet to see if that resolves the problem.

Next, press the power button to turn the brewer on. If you have a Keurig® Plus or Keurig® 2.0 Series, look for the power icon on the lower right of the LCD screen and tap it once.

If you have tried all of the above troubleshooting tips and your brewer still fails to turn on, it’s best to contact the Keurig Customer Service team at 1-866-901-BREW(2739) for further assistance. They can provide additional guidance and support to help resolve the issue.

Related: Keurig water leak troubleshooting

What is the reason for a Keurig not turning on?

The main reason why a Keurig will not turn on is due to a disruption in the electrical circuit to the power supply board. The power board is essentially the “brain” of the machine that controls all of its functions. Therefore, it is essential to check the entire length of the electric circuit to the power board.

There are a few common culprits when it comes to the electric circuit being cut:

  • One possibility is a faulty on/off switch button. This button can wear out over time, causing it to fail to complete the circuit.
  • Another possibility is a thermal fuse or thermal switch that has blown. These components are designed to protect the machine from overheating and can cause the electric circuit to cut off if they fail.
  • It is also possible that the power board has failed and needs replacing. These boards are located in a hot and humid environment, which makes them more prone to failure over time.

Thermal switch failure in Keurig coffee maker

If you’re experiencing issues with your Keurig coffee maker not powering up, it may be due to a defective thermal switch (Common in K-Supreme models).

What is a thermal switch?

A thermal switch is an electrical switch that responds to changes in temperature. It works by opening or closing a circuit in response to a specific temperature range.

In the case of a Keurig coffee maker, the thermal switch is used as a safety feature to prevent the machine from overheating. When the temperature inside the machine reaches a certain level, the thermal switch will open the circuit, shutting off the power to the machine until it cools down. Once the machine has cooled, the thermal switch should reset itself, allowing it to power up again.

However, in some cases, the thermal switch may become defective and fail to reset, causing the machine not to power up. To troubleshoot this problem, you can follow these steps:

  1. Check the device’s power source by verifying that it is properly plugged into an outlet and that other appliances work in the same outlet.
  2. If the power supply is not the problem, the problem probably lies in the thermal switch.
  3. Turn off and unplug the Keurig.
  4. Remove the water tank.
  5. Remove the drip tray.
  6. Disassemble the coffee maker.
  7. Locate the thermal switch inside the machine and verify it is in good condition outside.
  8. Use a multimeter to check the thermal switch. Set the meter to the ohm setting and connect one side to the plug and the other to the thermal switch. If it reads an open circuit, the thermal switch has failed and needs to be reset or replaced.
  9. To manually reset the thermal switch, use a steel wire to press the contact back into place. This should complete the power circuit and allow the device to power up.
  10. Reassemble the Keurig.
  11. Try to prepare a coffee; the problem will be solved if it works correctly. Otherwise, it will be a more complex fault (Keep reading or contact Keurig’s customer service for further assistance).

Explanatory videos:

A defective control board in the Keurig coffee maker

After checking the entire circuit to the control board of your Keurig coffee maker, if there is continuity throughout the circuit and still the machine is not turning on, then the problem might be with the control board itself.

There could be several reasons for the control board to fail, such as a misconfiguration or damage to the capacitors or other components. You can try resetting the control board if the issue is due to a misconfiguration.

The method we will explain below does not always work, but in many cases, it does, so it is worth a try. It usually works best with older Keurig machines. If this does not work, the most reliable solution is to replace the power board entirely.

  1. Power off your Keurig machine.
  2. Unplug your machine from the power source.
  3. Remove the water reservoir by lifting up the handle and pulling it upwards.
  4. Wait 10 minutes before plugging the machine back in and powering it on. This will reset the internal computer of your Keurig machine.
  5. Once the Keurig is powered on, give it time to recognize that the water reservoir isn’t connected. Once the light starts flashing, reattach the water reservoir to your Keurig. This final step is important.
  6. Wait until the “Add Water” indicator stops flashing.
  7. Once it stops flashing, open and close the K-Cup compartment to your machine.
  8. Your machine is now reset and ready to go.

It’s important to note that some Keurig models may have slightly different reset instructions, so it’s always a good idea to check the manual or the manufacturer’s website for specific instructions.

Why does the Keurig coffee maker turn off while brewing coffee?

Keurig coffee makers are equipped with safety measures to protect the user from accidents. If the Keurig suddenly shuts off while brewing coffee, it may be due to the activation of these safety measures.

Cause 1. Overheating of the heating element

When the coffee maker reaches a temperature much higher than the brewing temperature, it may turn itself off by acting on the thermostat to protect the user from burns. If this happens, it should turn back on once it cools down. If it doesn’t turn on, try manually resetting the thermostat or checking the power circuit to the control board.

Cause 2. Problems with coffee pod perforation

The Keurig may turn off if it detects an increase in pressure that is too great due to problems with the coffee pod perforation. This is a safety measure to prevent burns caused by hot water and coffee exploding from the machine. Check the coffee pod and ensure that it is properly perforated before brewing.

Cause 3. Programmed auto shutdown

Some Keurig coffee makers can be programmed to auto shut-off after a certain time. Even if the machine is in the middle of brewing coffee, it will turn off when the set time arrives. This can be a bother, and Keurig should solve this issue.

Cause 4. Desalination of the water tank magnet

Sometimes, the Keurig may shut off completely due to the desalination of the water tank magnet, which prevents it from detecting the presence of the tank. To fix this, remove and reinsert the water tank properly.