Plumbing Questions? Ask a Plumber and Get Answers ASAP.
Assuming there's nothing wrong with the old sensor then it should work with the new heater. But you should call Kohler at 1-***-***-**** for a definitive answer.
Your asking a question that only Kohler can answer. If you want a refund then contact customer service athttp://ww2.justanswer.com/contact-us