What tools are necessary to diagnose and potentially fix an E7-4 error on a Toshiba top-load washer?

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Grade: Education Subject: Support
What tools are necessary to diagnose and potentially fix an E7-4 error on a Toshiba top-load washer?
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Essential tools include a screwdriver set, pliers, a bucket to catch water, a shop towel, a multimeter (for testing electrical components), and potentially a wet/dry vacuum to remove any standing water. A service manual for your specific model is also highly recommended.