Thermador Refrigerator coffee maker leaking: Common Causes & How to Fix

Repair Instructions:

If a Thermador refrigerator's built-in coffee maker is leaking behind the dispenser, the tube or hose connecting to the dispenser likely has a crack or hole allowing water to drip out. Visually inspect the plastic tubing or rubber hose running from the water line up to the dispenser for any cracks, punctures or perforations that could cause leaking. Check where the line connects to the dispenser for secure fitment without drips. Any damaged, loose or faulty tubing or hosing needs replacement to stop leakage.

How to Replace Thermador Refrigerator Dispenser Hose:

1. Safety Precautions:

   • Ensure the Thermador refrigerator is unplugged or disconnected from the power source to prevent any electrical hazards.

2. Empty the Dispenser:

   • Dispense any remaining water or ice from the Thermador refrigerator dispenser to reduce the risk of leaks during the replacement.

3. Access the Back of the Thermador Refrigerator:

   • Move the Thermador refrigerator away from the wall to access the rear. If necessary, unplug the appliance and turn off the water supply valve.

4. Locate the Hose Connections:

   • Identify where the dispenser hose connects to the water source and the dispenser on the back of the Thermador refrigerator.

5. Disconnect Water Supply:

   • Using pliers or an adjustable wrench, carefully disconnect the water supply line from the hose connection on the back of the Thermador refrigerator. Be prepared for any residual water to drain.

6. Remove the Dispenser Hose:

   • Loosen the connection at the dispenser end of the hose, typically beneath the drip tray. Carefully detach the hose from the dispenser.

7. Trace the Hose Route:

   • Trace the path of the old hose through the Thermador refrigerator's interior. Remove any clips or fasteners securing it in place.

8. Install the New Hose:

   • Feed the replacement dispenser hose along the same route as the old one. Ensure it is not kinked or twisted and is securely positioned.

9. Attach the Dispenser End:

   • Securely attach the new hose to the dispenser, ensuring a tight fit to prevent leaks.

10. Connect the Water Supply:

    • Reconnect the water supply line to the hose connection on the back of the Thermador refrigerator. Tighten it with pliers or an adjustable wrench to ensure a snug fit.

11. Check for Leaks:

    • Turn on the water supply and check for any leaks at both the dispenser and the back of the Thermador refrigerator. If you spot any leaks, immediately tighten the connections.

12. Plug In and Test:

    • Reconnect the Thermador refrigerator to the power source and run the dispenser to check for proper water flow without any leaks.

13. Replace Drip Tray and Rear Panel:

    • Reassemble the Thermador refrigerator by putting the drip tray back in place and, if applicable, the rear panel.

14. Position the Thermador Refrigerator:

    • Move the Thermador refrigerator back to its original position against the wall, ensuring it is level and properly aligned.

15. Turn On and Load:

    • Plug the Thermador refrigerator back in, turn it on, and load the dispenser with water or ice as needed.

Repair Instructions:

K-Cup pods must be firmly pressed down so the bottom pin fully punctures the pod for proper brewing. If the pod is not pushed completely into place, the lower puncture pin may fail to pierce through. Clogged top or bottom pins can also prevent full penetration. Without full puncturing, water will leak from the coffee maker during brewing. Try cleaning any blocked pins with a paperclip to clear obstructions. Ensure pods are pressed firmly until fully punctured by the top and bottom pins.

Repair Instructions:

The most common cause of a leaking Thermador refrigerator coffee maker is a cracked or punctured container. Visually inspect the coffee maker housing for any damage like cracks, holes or splits that could allow water to leak during brewing. Check where the water line connects for tight, secure fit without dripping. Confirm the lid and internal tubing do not have any perforations. Any defects in the housing such as cracks or broken pieces will lead to leakage. If any punctures, cracks, or faulty seals are found, the damaged coffee maker container will need replacing.

How to Replace Thermador Refrigerator Coffee Maker Container:

1. Prepare for the Replacement:

   • Unplug your Thermador refrigerator from the power source for safety.
   • Locate the coffee maker container inside your Thermador refrigerator. It is typically found in the door or on a shelf.

2. Gather Necessary Tools:

   • Ensure you have the required tools on hand, including a screwdriver, pliers, and a replacement coffee maker container that is compatible with your Thermador refrigerator model.

3. Empty the Container:

   • Remove any remaining coffee grounds or water from the container. Ensure it is clean and dry before proceeding.

4. Access the Container:

   • Depending on your Thermador refrigerator model, you may need to remove the container's cover or access panel. Use the screwdriver to remove any screws or fasteners holding it in place.

5. Disconnect Water Lines (If Applicable):

   • If your coffee maker container is connected to water lines, carefully detach them using pliers or a wrench. Make sure to catch any water that may spill in a container or towels.

6. Remove the Old Container:

   • Once the cover or access panel is removed, carefully slide out the old coffee maker container. Be gentle to avoid any damage to the Thermador refrigerator interior.

7. Install the New Container:

   • Slide the replacement coffee maker container into the same location where you removed the old one. Ensure it fits snugly and securely.

8. Reconnect Water Lines (If Applicable):

   • If you disconnected water lines, reattach them to the new container using pliers or a wrench. Ensure they are tightly secured to prevent any leaks.

9. Secure the Cover or Access Panel:

   • Reattach the cover or access panel using the screwdriver and fasteners. Make sure it is firmly in place.

10. Test the Coffee Maker:

    • Plug your Thermador refrigerator back into the power source and turn on the coffee maker. Check for any leaks or malfunctions to ensure proper installation.

11. Replenish Coffee Supplies:

    • Fill the new coffee maker container with coffee grounds and water, and make sure it's ready for use.

12. Final Check:

    • Verify that the coffee maker container is functioning correctly and that there are no leaks or issues. 

Repair Instructions:

A Thermador refrigerator coffee maker leaking could indicate the control board is keeping the water inlet valve open, overfilling the coffee maker. Check for shorts or burnt spots on the board that may continuously signal the valve. First inspect the coffee maker tubing and container for cracks allowing leaks. Test the inlet valve operation to ensure proper opening and closing. If no line defects are found and the valve functions correctly, the control board may be keeping the valve stuck in the "open" position, overfilling until leakage occurs.

How to Replace a Thermador Refrigerator Control Board

1. Unplug the Thermador Refrigerator. Unplug the Thermador refrigerator from the electrical outlet to ensure your safety while working on the appliance.
2. Locate the Control Board. Identify the current control board, typically located in the Thermador refrigerator's control panel, which is often located on the front of the appliance, near the top or inside the Thermador refrigerator section.
3. Document Wiring Connections. Take photographs or make a detailed note of the wiring connections on the old control board for correctly reconnecting the wires to the new control board.
4. Disconnect Wiring. Gently disconnect the wires and connectors from the old control board.
5. Remove the Old Control Board. You may need to remove screws, clips, or retaining brackets securing the old control board. Carefully remove these components to access the control board.
6. Install the New Control Board. Position the new control board in the same location as the old one and secure it with screws, clips, or brackets.
7. Reconnect Wiring. Reattach the wires and connectors to the corresponding terminals on the new control board.
8. Plug in the Thermador Refrigerator. Allow the Thermador refrigerator to run for a while. Test the control board's functionality by adjusting temperature settings, ensuring that it properly regulates the Thermador refrigerator's temperature and features like defrost cycles.