Hello everyone!
I just picked up a 2012 J-315 from someone fir next to nothing and am in process of getting it up and running. The previous owner took pretty good care of it but replaced it about two weeks ago to upgrade after it stopped working on them. He had the desler he originally purchased it from come look at it and they told him it needed a new circuit board so he decided to upgrade it as they’ve been wanting to buy a new one as it was no longer big enough anymore. My questions are before I replace the circuit board what test’s can i do to make sure that’s the problem before i buy one, cant find them under $400 and wanna be sure.
I’ve checked resistance on heater, hi-limit, and temp sensor. Checked all fuses and tested both pumps independently and everything is fine. When powered up the only thing that works is the lights, circulation pump never starts nor is there voltage at the terminals, heater never comes on nor is there voltage at the terminals, heat on indicator on topside is on however, main two speed pump never comes on nor is there voltage at its terminals either. However when jets button is pushed the heat on indicator goes off, then comes back on after pushing button twice more. This indicates to me the topside is fine. Everything i have tested indicates to me the circuit board is in fact bad just looking for anyones opinions or other tests to do. Thanks in advance