I was kinda fishing for information. My Cooktek unit has a fast cycle time on lower power settings. It pulses like 3-4 times a second, which means I don't see bubbles coming and going since the pulse rate is so fast. In the 'old days', units used pulse rates that were slow and you could see the bubbles come and go. I think this is one of the things that caused induction to not catch on the first time around 20-30 years ago. This slower implementation makes it hard to simmer without scorching.

We've had one for 4 years... use the Ultima Speek Cook feature about once per week, and the MW feature at least 5 times per week. No issues here. -Gorilla

Personally, I'd see if you could get the highly reputable appliance store to take back the range (lemon law?) and let you get a different brand. Sounds like this range has too many built-in problems that can't get resolved - an extended warranty will just prolong the agony. You know, it's strange, I have a KA fridge, DW, and compactor and they all work fine after 5 years, but the ranges and ovens all seem to have problems - at least as reported on this forum. Good luck!

YES. i used mine for the FIRST time yesterday (6/27/2022) and it shutdown 2 hours into the clean, blew the fuse, bottom door was locked, and the panel was blacked out. this happened also last november when i was baking bread. not only did it blow the fuse, but the circuit breaker in the garage as well. from what i hear from my friends that have kitchenaid ovens -- do not ever use the self-clean because it blow the fuse EVERY TIME! i complained to kitchenaid/whirlpool about this issue yesterday, vehemently, and have not heard a peep from them. one thing for certain, it keeps the kitchenaid repairmen in business because every holiday (thanksgiving/christmas) when ladies are planning to do a lot of cooking, they try and clean their ovens. last november, mine crashed a week before thanksgiving (was baking sourdough bread). the repair service response: "too bad, so sad. will not be able to get parts or service your oven until two weeks AFTER thanksgiving. heads up people...DO NOT USE THE SELF-CLEAN button when you are a few weeks shy of a major holiday. you will be cooking in crockpots, outdoor grills, and on the stove. to my knowledge kitchenaid has not addressed this issue in their ovens. but it's just not kitchenaid, from what i heard from the repair guys, it's viking, bosch, etc. too. doesn't matter how much you pay for your ovens - THEY DO NOT RECOMMEND YOU EVER USE YOUR SELF-CLEAN program! BTW....in november, my warranty had not yet expired, but was going to expire waiting to get service and parts. they are still the best, they just need to fix this problem - it's been ongoing for almost a decade now according to this blog. If there is a class action lawsuit in the works, I would like to join. maybe a little legal pressure will force them to ultimately fix this very dangerous problem.