The purpose of the waveguide is to cover the aperture through which microwaves enter the oven cavity. It stops moisture and food particles getting into the internal components of the microwave.
You should replace the waveguide if It has fallen off, if there is a hole in it (moisture could enter it) if there is arcing or sparking during use.
Please check model fit list to ensure this part is correct for your model.
If you're not sure what's causing the fault with your Samsung Microwave or you aren't able to complete the repair yourself then our partner service, Repaircare, is just what you need.
Repaircare is a network of fully trained appliance engineers that operates nationwide. Unlike other repair services, Repaircare only offer fixed price repairs, which means that the price quoted is the price you pay.
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