Dishwasher Dilemma: Why Does My Thermador Dishwasher Refuse To Run?

If your Thermador dishwasher has suddenly stopped starting, it can be a frustrating experience. The reasons for this issue can vary, ranging from simple fixes to more complex repairs. In this comprehensive guide, we will explore the various causes behind this problem and provide detailed troubleshooting steps to help you get your dishwasher back up and running.

Electrical Issues

1. Power Outage or Breaker Tripped

• Cause: A sudden power outage or a tripped circuit breaker can cut off power to your dishwasher.
• Solution: Check if there has been a power outage in your area. If not, locate the electrical panel and check if the breaker for the dishwasher has tripped. Reset the breaker if necessary.

2. Faulty Power Cord

• Cause: A damaged or loose power cord can prevent the dishwasher from receiving power.
• Solution: Inspect the power cord for any visible damage or loose connections. Replace the cord if it is damaged.

Water Supply Issues

3. Water Shutoff Valve Closed

• Cause: The water shutoff valve under the sink might be closed, preventing water from entering the dishwasher.
• Solution: Check if the water shutoff valve is open. Turn it clockwise to open it.

4. Clogged Water Inlet Valve

• Cause: The water inlet valve allows water to flow into the dishwasher. If it becomes clogged, it can restrict water flow and prevent the dishwasher from starting.
• Solution: Locate the water inlet valve behind the dishwasher and inspect it for any debris or blockages. Clean or replace the valve if necessary.

Door Issues

5. Door Not Properly Closed

• Cause: If the dishwasher door is not completely closed, it will not start.
• Solution: Open and close the dishwasher door firmly to ensure it is properly latched.

6. Faulty Door Latch

• Cause: A broken or misaligned door latch can prevent the dishwasher from detecting that the door is closed.
• Solution: Inspect the door latch for any damage or misalignment. Adjust or replace the latch if needed.

Control Panel Issues

7. Malfunctioning Control Panel

• Cause: The control panel is responsible for starting the dishwasher and selecting the desired cycle. If it malfunctions, it can prevent the dishwasher from starting.
• Solution: Try restarting the dishwasher by unplugging it for a few minutes and then plugging it back in. If the issue persists, contact a qualified appliance repair technician.

Other Issues

8. Float Switch Activated

• Cause: The float switch detects if there is excessive water in the dishwasher. If it becomes activated, it will prevent the dishwasher from starting.
• Solution: Check if the dishwasher has leaked water. If so, locate and repair the leak.

9. Drain Pump Failure

• Cause: The drain pump removes water from the dishwasher after it has finished a cycle. If it fails, water will accumulate in the dishwasher, preventing it from starting.
• Solution: Listen for the sound of the drain pump running. If you don’t hear it, the pump may be faulty and need to be replaced.

Troubleshooting Summary

1. Check for power supply issues.
2. Ensure water supply is available.
3. Verify that the door is properly closed.
4. Inspect the control panel for any issues.
5. Consider other potential causes such as float switch activation or drain pump failure.

Fixing the Problem Yourself vs. Hiring a Professional

If you are comfortable with basic electrical and plumbing tasks, you may be able to resolve some of the simpler issues outlined in this guide yourself. However, for more complex repairs, it is highly recommended to contact a qualified appliance repair technician. They have the necessary expertise and tools to diagnose and fix the problem safely and effectively.

Summary

Troubleshooting a dishwasher that won’t start can be a challenging task, but by following the steps outlined in this guide, you can increase your chances of identifying and resolving the issue. Remember to approach electrical and plumbing repairs with caution, and don’t hesitate to seek professional assistance if needed.

Information You Need to Know

Q: What should I do if I’ve tried all the troubleshooting steps and my dishwasher still won’t start?

A: Contact a qualified appliance repair technician for further diagnosis and repair.

Q: How often should I clean the water inlet valve?

A: It’s recommended to clean the water inlet valve every 6-12 months to prevent blockages.

Q: Can I replace the door latch myself?

A: Yes, replacing the door latch is typically a straightforward repair that can be done by a homeowner with basic tools. However, if you are not comfortable with electrical repairs, it’s best to hire a professional.