Jim Clauss

I have 240 volts. Yellow wires from transformer read 14.0 volts. Getting 3.76 on sensors, j21(temp & high limit) and j9 (pressure switch) pic attached of the two plugs tested. Thanks, Jim

I have 120 on both inputs. How do I test output on trans? Assuming two yellow ones are output, how do I connect to them, I got nothing testing where wire connects at transformer coil(not sure if that's an accurate way to test) At plug (there's a black, white and two yellows going to transformer) there is 120 going to trans via black. Something clicks when I plugged it back in. Where/what are sensors? Thanks Jim

It's been off for weeks, turned it on this morning, no changes. Is there a way to reset other than breaker? Pics attached. Thanks

I have a 2003 cal spa with 5000 series control panel. Spa stopped working and control panel is flashing 20 then 11 then 00. Any ideas what to do? Thanks