Bosch dryer wont heat up

SOURCE: Bosch wta3510us tumbling NOT heating. Reset button?

Remove your back cover ,and then you see the heating element.On one side or on top there is a termostat(Small Black)there is a red button which you should press down until you hear a click.Start machine and element should work.You can start it for a little while but be careful.Put cover back after cleaning loose lint etc. Jan

SOURCE: My Bosch Condensation dryer (W2L 5400) won't heat up -- can't find the reset button

you need to remove the centre metal plate,after powering off the dryer. The small red reset button is on one of the black plactic connects on my model (WTA4408)

SOURCE: Does the Bosch Tumble Dryer WTA3003GB/01 have a trip reset button

YOUR DRYER HAS A FUSE AND NEEDS TO BE CHECKED. SEE IF IT IS LOCATED SOMEWHERE WHERE THE POWER CORD COMES IN AT. IT SHOULD BE CLOSE TO THE MAIN POWER COMING IN OR MAYBE EVEN IN THE CONTROL PANEL AREA.

SOURCE: Bosch nexxt 500 series dryer

I had the same trouble after moving to a new house, I first thought I had a voltage problem. It turns out that the heating coil has a high temp re-setable switch in side the back - lower right side. the sencor has 2 screws, I took it out and cleaned off the lint and now have dryed 5 loads with 0 issues. looks like a flaw in design that would allow lint to get in the heating coils!!!!! I think I'm going to look for a new dryer before I burn down the house!!

SOURCE: I have a Bosch nextt 500 series dryer and after 2

Open the front panel, remove heat exchanger and clean. also clean out lint tray. this might help a little. Now lets check if the thermal sensor or heating element needs to be replaced.
Unplug the dryer. remove the panel in the back of the dryer that covers the heating element. ( the inner panel). On top of the heating element you will see a thermal sensor with a small red button on it. Thats the manual reset button. To test if the heating element is working properly you can disconnect the wires from the sensor and clip the connectors together . Plug the dryer back in and start it. pay attention to the heating element. It should begin to glow shortly. if it doesn't then your heating element is bad and needs to be replaced.

Unplug the dryer. Connect the wires back to the thermal sensor. Plug the dryer back in. Before you start the dryer, press the red button on the thermal sensor. Start the dryer. If the heating element doesn't come on and dryer doesn't heat, then you need to replace that sensor.