Bosch Microwave Repair

A Bosch microwave drawer that stops halfway open is a problem other microwaves cannot have. Bosch builds three types: over-the-range models that vent the cooktop and light it, built-ins designed to sit above a wall oven, and drawers mounted below the counter. The drawer adds a motorized drive and position sensors on top of the magnetron, high-voltage parts and door switches every microwave has.

That drive system is the drawer's most frequent failure: the drawer stalls, refuses to open or closes with a grinding sound, and the cause may be the motor, a sensor or something blocking the track. Every style shares door interlock switches that wear out with use. And a microwave that lights, turns and hums without warming food points to the high-voltage side: magnetron, diode or capacitor.

Safe owner checks are limited to the outside. Clear the drawer track and avoid overloading the drawer. After a storm, a minute with the breaker off can clear a confused control. Over-the-range owners should also wash the grease filters. Do not open the case. Inside, the high-voltage capacitor stores enough energy to injure you, even unplugged, and that is not a risk worth taking.

We discharge the capacitor before testing anything on the high-voltage side, then check the door switches and, on drawer models, the drive motor and sensors. Over-the-range units get an extra look at the exhaust fan motor and light sockets, which fail independently of cooking. Built-in and drawer models may have to slide out of their trim kit or cabinet opening, and we take care doing it.

The repair math depends heavily on the style. On an aging over-the-range Bosch, a new magnetron or control board can approach what a replacement microwave costs. A microwave drawer is different: it costs more to replace and has to fit a specific opening, so drive parts, switches and even bigger repairs usually make sense. We give you the figures for your model before ordering anything.