I have a Jacuzzi 2007 j280, recently I had a guy out here looking at my FL2 error, I had replaced my flow/pressure switch with a new one and the error still occurs.
The thing is everything still works fine, heater will come on when it needs to, pumps will still cycle. The message goes away when pump 1 is running on low or high but if its turned off the message comes back with either no pumps running or just pump 2 on.
Resistance reading is 1 with power off to tub for my switch so it appears switch is fine (my tech guy said this but I did see his meter) is the only other thing circuit board? He all but put in an order for a $300 board but i just wanted to make sure there was nothing left to test before I shell out that kind of money.
Is there anyway to test the wiring harness that plugs into the board, my new switch did not come with a new wiring harness.