I’d email 4iiii support and describe this to them. My 105 left only worked flawlessly for almost 2 years and then one day started going through the roof – I think it got up to 3500 watts while I was soft pedaling. They had me try a couple standard things and when that didn’t fix it gave me a shipping label to send it back for repair, and had it back in 10 days or so, no charge, and even though I was technically out of warranty. It’s worked flawlessly again ever since. Good luck!
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