Aqua Hot is located just off I-25 in Fredrick CO. (Ironically, just behind a Newmar dealer) They have excellent customer service and are very willing to help you troubleshoot your problem.
I called, then visited their factory getting a tour and an overview of the systems. I got to see how they are assembled. The systems are pretty simple and easy to change out any parts within the unit.
Give them a call.
Joe & Bonnie
2015 Anthem 42 DEQ
H-D Road Glide, KTM 1190 Adventure R