I assume you mean the Samsung/MB44C0/MB44C023 (built-in microwave or oven control board) with a cracked PCB or housing—here are likely symptoms, risks, and repair options:

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Mb44c023 Cracked | ((hot))

I assume you mean the Samsung/MB44C0/MB44C023 (built-in microwave or oven control board) with a cracked PCB or housing—here are likely symptoms, risks, and repair options:

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