My thermador microwave model mbbs makes a lot of noise and does not produce any heat output.

Buy a new one based on the size

https://www.ajmadison.com/cgi-bin/ajmadison/MBBS.html

https://www.google.com/search?q=Thermador+Microwave+MBBS+replacement

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I just successfully replaced a Thermadore MBBS microwave with an LG Model #LMC2075ST (Lowes stock number 728040). It was close to a perfect fit into the Thermadore trim kit and attachments, and very easy install. The LG was only $169 on sale at Lowes, and is, by far, a superior microwave to the old MBBS model.

just replaced our 6 year old Thermador MBBS ($750) with a GE JES2051SNSS from Home Depot ($179). The bottom guide piece from the Thermador bolted right on the bottom of the GE and positioned the new unit so the front trim piece fit perfectly.

The MBBS sereis was replaced by the MBES series.

Specs are here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Key clue is table does not move---All microwaves with a table have a lever switch that is engaged when door closes--only can get at from inside the unit----it prevents the unit from operation if door not closed.

What happens from closing door a lot is the switch with a lever arm can come loose or even if snapped into a plastic holder break out of the holder.

IF this it is not too expensive a repair.

Hi,
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Microwave Oven Basic Troubleshooting Tips

heatman101

The magnetron is most likely the problem, it heats the food and is the heart of the of the microwave oven, if it was followed by unusual odor more noticeable when you open the door that would confirm it, but that is not always the case. The cost to repair would exceed the cost of a new one

Thermador doesn't make one, but we found the GE JEB1860SM1SS from Home Depot fit perfectly. For only $259. The repair to fix our Thermador was $618. It was only 5 years old. I couldn't believe it already went out. I won't be buying anymore Thermador appliances.

easy...first thought it was a program glitch. turntable could be turned off manually. nope ...just a bad motor needed replacement

Sounds like the thermal protector on the mag tube quit. It may have gotten too hot and opened up. That is the lesser of all the evils that can happen to a Microwave.