Fixing a microwave oven that abruptly shut off mid-cycle involves addressing potential thermal overloads or blown safety fuses. First, check if the kitchen circuit breaker tripped. Second, unplug the unit and let it cool down for twenty minutes in case an internal thermal protector shut the appliance down due to an overheated magnetron or blocked ventilation grilles. Third, inspect the primary line fuse for continuity. You can troubleshoot power failures safely using a digital multimeter. You can verify that your corrective action is successful when resetting the circuit breaker, clearing blocked vents, replacing a blown thermal fuse, or allowing the unit to cool restores normal power and heating capability.
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