RANGE WITH TOO MUCH POWER. I have a Kenmore range that i purchased in 2000. THe main computer

Question

I have a Kenmore range that i purchased in 2000. THe main computer board has gone out for the 3rd time. A repair tech tested and told me that there was 260.3 watts coming into it instead of the required 240 ish. I called my electric company and they confirmed that there was a faulty capacitor bank in my area and they fixed in right away. My electric company is willing to pay for the computer board but I really think that there has been too much electric all along and that is why this kept going out. Can you help me with this?