Coffee Machines - Troubleshooting

The water filter needs to be replaced. Refer to your owner's manual to learn how to replace the water filter and which filter you need to purchase. If you do not have an owner's manual, you can download it here. Water filters can be purchased in the Thermador Accessories Store. Avoid potential counterfeit filters by purchasing original and authentic Thermador filters there.

Learn more information on the water filter and watch a video on how to insert a water filter here.

If the display shows FILL BEAN CONTAINER although the container is already full, the beans are too oily and not falling into the grinding unit. Empty the bean container and clean it with a dry cloth. If the problem persists, use less oily beans.

If the display shows MILK CONTAINER CONNECTED? but the milk container is already connected, there are several solutions for this problem:

• The container is outside the range of the sensor. Make sure to position the container at the right edge.
• The material (e.g., milk carton) is not recognized by the machine. Confirm the display request with YES or use the provided milk container.

If the display shows OVERVOLTAGE OR UNDERVOLTAGE, the voltage is too high or too low. Contact your electricity or grid provider and have your power supply checked by an expert.

If the display shows LEAVE DEVICE TO COOL, switch off the coffee machine for 30 minutes and let it cool.

There are several solutions for this problem:

• The water tank has been wrongly inserted. Insert it correctly.
• There is carbonated water in the water tank. Fill it with fresh tap water.
• The float is stuck in the water tank. Remove the tank and clean thoroughly.
• The water filter is defective or the new water filter was not rinsed properly. If the water filter is defective, use a new one. Read the instructions that come with the filter to learn how to properly rinse it. The water filter can be purchased in the Thermador Accessories Store. Avoid potential counterfeit filters by purchasing original and authentic Thermador filters there. Learn more information on the water filter and watch a video on how to insert a water filter here.
• There is air in the water filter. Dip the filter into water until no more air bubbles escape. Reinsert it into the appliance.

If the display shows EMPTY DRIP TRAYS but they are already empty, there are several solutions for this problem:

• The drip tray is soiled and wet. Clean and dry the drip tray thoroughly.
• If the coffee machine is switched off, it will not detect when the trays are emptied. Switch the coffee machine on and remove and reinsert the drip tray.

If the display shows INSERT DRIP TRAYS but they are already inserted, there are several solutions for this problem:

• The tray holder must be cleaned.
• The coffee grounds container is not fully inserted. Make sure to push the coffee grounds container all the way in.
• If the message still does not disappear, the magnet of the coffee bean container is not detected or is no longer present. Please contact Thermador Support at 1-800-735-4328 for more assistance.

There are several solutions for this problem:

• The coffee machine is too warm. Let the coffee machine cool down.
• The brewing unit is dirty. Remove the brewing unit and clean. Make sure to unplug the appliance before cleaning. Click here for step-by-step instructions on cleaning the brewing unit. For more information, refer to your owner's manual. If you do not have an owner's manual, you can download it here.

The brewing unit is not locked. Refer to your owner's manual to learn how to lock your brewing unit. If you do not have an owner's manual, you can download it here.

There are several solutions for this problem:

• The brewing unit is in the wrong position. Refer to your owner’s manual to learn how to insert it.
• The brewing unit is locked. Refer to your owner's manual to learn how to unlock it.

If you do not have an owner's manual, you can download it here.

Remove the brewing unit and clean. Make sure to unplug the appliance before cleaning. Click here for step-by-step instructions on cleaning the brewing unit.

For more information, refer to your owner's manual. If you do not have an owner's manual, you can download it here.

Make sure there are no beans in the housing. If there are, remove the beans.

Wait a few seconds after the last drink dispenses before removing the drip tray.

Do not insert the drip tray without the cover.

There are several solutions for this problem:

• Do not press the ground coffee firmly into the coffee drawer.
• The coffee drawer is damp. Remove the drawer from the machine. Rinse under running water and dry thoroughly.

The grinding setting is too fine for the oily beans. This will create wet ground coffee. Watch the video here for a guided tutorial on adjusting this setting. For more information, refer to your owner's manual. If you do not have an owner's manual, you can download it here.

Do not use coffee beans that are too oily or beans that have been glazed, caramelized, or treated with other additives containing sugar.

There are several solutions for this problem:

• An unsuitable type of coffee was used. Use a type of coffee with a higher proportion of Robusta beans.
• Use fresher beans.
• The grinding level is not suitable for the beans. Adjust the grinding level to a finer setting. Watch the video here for a guided tutorial on adjusting this setting. For more information, refer to your owner's manual. If you do not have an owner's manual, you can download it here.

There are several solutions for this problem:

• The milk tube has not been removed. Remove the milk tube from the milk container. Refer to your owner's manual to learn how to properly remove the milk tube.
• There is milk or coffee residue in the beverage outlet that must be cleaned. Refer to your owner's manual to learn how to clean the beverage outlet.

If you do not have an owner's manual, you can download it here.

There are several solutions for this problem:

• The coffee is ground too finely. Adjust the grinding level to a coarser setting. Watch the video here for a guided tutorial on adjusting this setting. For more information, refer to your owner's manual.
• There is a build-up of limescale in the appliance. Run the descaling program. Click here for step-by-step instructions. Descaler for your coffee machine can be purchased in the Thermador Accessories Store.
• The brewing unit is dirty. Remove the brewing unit and clean. Make sure to unplug the appliance before cleaning. Click here for step-by-step instructions on cleaning the brewing unit. For more information, refer to your owner's manual.

If you do not have an owner's manual, you can download it here.

There are several solutions for this problem:

• There is limescale build-up in the appliance. Run the descaling program. Click here for step-by-step instructions. Descaler for your coffee machine can be purchased in the Thermador Accessories Store.
• The beverage outlet or one of the 3 connections is blocked. Clean the beverage outlet and the connections. Refer to your owner's manual to learn how to clean these parts.
• The milk is not suitable for foaming. Always use cold milk with a fat content of at least 1.5%.
• The beverage outlet or the milk tubes are not properly assembled. Moisten the individual parts and reassemble them properly. Refer to your owner's manual to learn how to assemble these parts.
• The suction pipe is blocked and needs to be cleaned. Refer to your owner's manual for cleaning instructions.

If you do not have an owner's manual, you can download it here.

There are several solutions for this problem:

• There is limescale build-up in the appliance. Run the descaling program. Click here for step-by-step instructions. Descaler for your coffee machine can be purchased in the Thermador Accessories Store.
• The suction pipe is blocked and needs to be cleaned. Refer to your owner's manual for cleaning instructions.

If you do not have an owner's manual, you can download it here.

The nozzle may be blocked. Unblock the nozzle by unscrewing the nozzle counterclockwise. Use a small screwdriver to gently clean the airway and air hole. Rinse the nozzle with hot water. Reinsert the nozzle by screwing it in clockwise.

This is normal and there is nothing wrong with the appliance.

The water filter is not mounted correctly. Firmly press the water filter straight down into the tank connection. Learn more information on the water filter and watch a video on how to insert a water filter here.