Genuine Bosch Neff Microwave Oven Inverter Control Board PCB Part # 12021657

Genuine Bosch Neff Siemens Microwave Oven Inverter Control Board PCB Part 12021657

Genuine Bosch replacement inverter for microwave ovens. The inverter board regulates the power supplied to the magnetron, controlling the microwave's output level and allowing it to cook or defrost at different power settings. If your microwave has stopped heating properly, cuts out shortly after starting, produces a humming noise without warming the food, or shows an error code related to power output, a faulty inverter is often the cause.

Replacing it restores normal heating performance without needing a new appliance. Before fitting, make sure the part number matches the one on the inverter you are removing, as microwave manufacturers use several different inverter designs across their ranges. Fitting should only be carried out by someone comfortable working safely inside a microwave's casing.

Product Specifications:

Manufacturer Part Number (MPN): 12021657
Alternative Part Numbers: NONE
Also Known As: Microwave Inverter Board, Microwave PCB, Microwave Power Board, Microwave Circuit Board, Microwave Control Board PCB, Microwave Inverter PCB, Microwave Power PCB, Microwave Main PCB, Microwave Inverter Module, Microwave Power Circuit Board
Brand Compatibility: Balay / Bosch / Constructa / Neff / Siemens

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Key Compatibility:

Manufacturers reuse the same part across many models and change model numbers between production runs, so the safest check is your own model number rather than the brand. Enter it in the checker above and we will confirm against this part.
If you are unsure, message us with your full model number and we will confirm before you order.

Expert Installation Tip: Microwave inverters store a charge even when unplugged, so if you're not confident discharging the capacitor safely, have a qualified engineer fit this part rather than doing it yourself.

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