Troubleshooting Bosch Dryer Not Starting? [Fix It Now!]

Is your Bosch dryer not turning on, leaving you with a pile of wet laundry? You’re not alone.

Many owners of Bosch dryers face this issue, but the good news is that there are several DIY fixes you can try before calling a technician.

The common reasons for the Bosch dryer not starting include power supply issues, door latch problems, and faulty thermal fuses or start switches.

Bosch Dryer Not Starting

Troubleshooting Bosch Dryer Not Starting

When your Bosch dryer won’t start, it’s natural to feel a bit frustrated. But, often, the solution is simpler than you think.

1. Wrong Bosch Dryer Settings

In some cases, the Bosch dryer not starting is due to incorrect settings. Features like a child lock or a delayed start function can inadvertently prevent the dryer from starting.

The child lock feature, designed for safety, can disable the control panel, while the delayed start function postpones the drying process to a later time.

How to Fix:

To deactivate the child lock, typically, you need to press and hold the Child Lock (CL) button for 3-5 seconds.

For the delayed start function, you can usually cancel it by pressing the start/pause button or resetting the cycle. Resetting the Bosch dryer should allow you to start your dryer normally.

2. Power Supply Issues

Power issues are often the first suspect when your Bosch dryer won’t turn on. A lack of power can stem from various sources, not necessarily the dryer itself.

How to Fix:

Start by ensuring your dryer is firmly plugged into the socket. Loose connections can often be overlooked. Next, examine your home’s electrical setup.

Check the circuit breaker or fuse box for any tripped breakers, as these are common culprits in power disruptions. Resetting the breaker or replacing a fuse can restore power to your dryer.

It’s also a good idea to check if other appliances are affected, which can indicate a larger electrical issue in your home.

3. Door Latch Malfunction

The door latch is a safety feature that might seem minor but is crucial.

If your Bosch dryer detects that the door isn’t securely closed, it won’t start. This feature prevents accidents and ensures efficient operation.

How to Fix:

Begin with a visual inspection of the latch. Look for obvious signs of damage or debris blocking the latch.

A simple cleaning can sometimes resolve the issue. Replacing the latch is usually a straightforward task if it is visibly broken.

You’ll need some basic tools and a replacement part specific to your model. This repair is typically manageable for those with basic DIY skills.

Bosch dryer won't turn on

4. Faulty Start Switch

The start switch is an essential component in your Bosch dryer. A defective switch can prevent the dryer from operating even when everything else is in perfect condition.

How to Fix:

Testing the start switch requires a multimeter. First, access the switch following your dryer’s manual. Then, use the multimeter to check for continuity.

If the test indicates no continuity, the switch is defective and needs replacing. This task requires a bit of technical know-how.

If you’re not confident in your ability to safely perform this repair, it’s wise to seek professional help.

Working with electrical components carries risks, and safety should always be your top priority.

5. Problems with the Thermal Fuse

A thermal fuse is a safety device designed to protect your Bosch dryer from overheating.

When the thermal fuse blows, it cuts off power to the dryer, preventing it from starting.

This can occur due to a clogged vent or a malfunctioning heating system, causing the dryer to reach unsafe temperatures.

How to Fix:

First, locate the thermal fuse, typically on the blower housing or near the dryer’s heat source. Use a multimeter to test it for continuity.

A lack of continuity indicates a blown fuse. Replacing the thermal fuse is a practical step you can take.

Ensure you also address any underlying issues, like cleaning the venting system, to prevent future occurrences.

6. Control Board Issues

The control board in your Bosch dryer is akin to its brain. It manages various functions and cycles.

If the control board malfunctions, it can disrupt the dryer’s ability to start.

Common signs of control board problems include unresponsive buttons or unusual behavior from the dryer.

Fixing Bosch dryer won't start

How to Fix: 

Begin fixing the Bosch dryer not starting by inspecting the control board for any visible signs of damage, such as burn marks or swollen capacitors.

While diagnosing these issues can be intricate, some basic fixes include ensuring all connections to the board are secure and checking for loose wiring.

However, the control board may need professional assessment or replacement if these steps don’t resolve the issue.

Given the complexity and potential risk, professional assistance is advisable for control board problems.

Also, check the following troubleshooting blogs if you have a different dryer brand:


Diagnosing and repairing your Bosch dryer not starting can be straightforward with the right approach.

We’ve walked you through common issues and practical solutions, from power supply checks to component inspections.

Remember, proper maintenance and understanding of your dryer’s settings are key to ensuring its longevity and efficient performance.

Whether it’s a simple setting adjustment or a more complex repair, these steps will guide you toward a resolution, keeping your Bosch dryer running smoothly for years to come.

Steven Settles Author

Steven Settles is an ISCET-certified master in appliance repair. He has aced the National Appliance Service Technician Certification Exam, showcasing his exceptional diagnostic and repair skills. With an in-depth understanding of the latest repair technologies and a keen eye on evolving industry standards, Steven is a go-to expert for any appliance issue.

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