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  1. Repair
  2. Bosch

Bosch dryer not starting

Common reasons your Bosch dryer is not starting

The most common reasons your Bosch dryer is not starting are a faulty thermal fuse, failed door switch or a broken drum belt.

  • 64%

    64% of the time it's the
    Thermal Fuse

  • 14%

    14% of the time it's the
    Door Switch

  • 13%

    13% of the time it's the
    Drum Belt

  • 9%

    9% of the time it's the
    Something else

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    Most common repairs needed to fix a Bosch dryer

    Thermal Fuse Replacement

    A faulty or blown thermal fuse can keep the dryer from starting. The thermal fuse is a safety device mounted on the blower housing that trips when the dryer overheats. The thermal fuse in most electric dryers prevents the motor from running. In some gas dryers, a blown thermal fuse will also prevent the motor from running. A clogged exhaust vent system often causes the dryer to overheat and the thermal fuse to blow. When the dryer won’t run, have a Sears Home Services Technician visit your home and fix the dryer. The technician will replace the thermal fuse if it’s blown.


    Door Switch Replacement

    If your dryer is not starting, a failed door switch could be causing the problem. The door switch detects when the dryer door is shut. A failed door switch won’t sense whether the door is closed properly. The dryer won’t start even through the door is closed when the door switch is bad. Have a Sears Home Services Technician check your dryer when it won’t start. The technician will replace the door switch if it is defective.

    Drum Belt Replacement

    When your dryer won’t start a cycle, a broken drum belt could be causing the problem. The drum belt wraps around the dryer drum and connects to the drive motor pulley. The drive motor rotates the belt to spin the drum. Over time, the drum belt becomes worn and can break. A switch on the idler pulley prevents the motor from starting when it senses that the drive belt is broken. When the dryer won’t start, have a Sears Home Services Technician check your dryer and replace the drum belt if it’s broken.

    What to expect when you experience a Bosch dryer not starting issue

    How is the not starting problem fixed?

    Correcting most not starting problems usually involves replacing the thermal fuse, door switch or drum belt. However, there are many potential causes, so a thorough diagnosis is key to fixing the problem. An accurate diagnosis is essential to understanding how much the repair will be.

    Sears Home Services recommendations for a dryer that is not starting

    When the dryer is not starting it can be for many reasons. To avoid replacing unneeded parts we recommend having a Sears Home Services professional perform diagnostic tests to identify the root cause of the problem. Our technicians are experienced at diagnosing all types of dryer failures.

    What to look out for with a dryer not starting diagnosis

    Diagnosing modern appliances without proper knowledge and training can be difficult. Without using proper diagnostic techniques, fixing your dryer problem will only be achieved through changing parts on a hunch. Appliances, especially in the last 10 years, have become extremely advanced, and many models have electronic parts that are difficult to test. DIY repairs on the latest appliance models are becoming increasingly difficult.

    What our customers say about us

    With more than 1.3 Million 5 Star Reviews, you don't have to take our word for it

    Excellent service from Daniel

    Daniel provided excellent service and was very quick to perform the repair. I have nothing good to say about the warranty program and the LACK of customer service and the inability to contact a human being to talk.


    Tammy M, Hilton, NY

    Satisfied customer

    Excellent technician Very thorough and detail oriented Would be happy to have him work on appliances again He managed to find our ranch headquarters in the middle of the desert


    Rose W, Las Cruces, NM

    Dryer service

    He was professional and polite. I didn't call back later that afternoon, although he replaced a thermostat the smart dry timer doesn't work as I was still having the same issue. The lady said she would email him and have him return. Never heard from anyone else.


    Terry F, Oklahoma City, OK

    Additional resources to help you fix your Bosch dryer

    dryer not heating
    Dryer Not Heating? 5 DIY Troubleshooting Tips for Dryer Problems

    These simple DIY tips from our dryer experts will help troubleshoot the reason your dryer won’t heat.

    They call them dryers for a reason. They’re supposed to actually dry your clothes. So when you’ve got wet clothes after running a load in the dryer, your appliance isn’t doing its job.

    Before you panic, though, not all dryer problems require a visit from a technician. Derrick Baylor, an appliance expert at Sears, offers his advice for troubleshooting common problems that could lead to a dryer not heating up — and simple ways to fix them.

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    Laundry Cycles Explained: Dryer Edition

    There’s nothing worse than pulling out a load of clothes out from the dryer and finding that your favorite jeans or new sweater are shrunken beyond repair.

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    How to Save Money by Using Your Clothes Dryer Efficiently

    Using your dryer efficiently can indeed help you save money on your utility bills. It will also help your dryer last longer — saving you money on dryer replacement costs over time.

    Additional possible Bosch dryer symptoms you may experience

    • Bosch dryer drum roller replacement
    • Bosch dryer leaking water
    • Bosch dryer no heat
    • Bosch dryer not draining
    • Bosch dryer not drying
    • Bosch dryer not heating
    • Bosch dryer not spinning
    • Bosch dryer not turning on
    • Bosch dryer not working