Hi, I have a 400K BUT Star-Rite heater that is about 10 years old and has been working properly.
Blower now started to turn on by itself when the controls are all off. No lights on Jandy RS panels, pumps are off, heater control panel is off. Flower has mind of its own.
Had the usual mouse problems and had to rebuild the wiring. It was working fine a couple of days ago and have not had a chance to see if it fire up properly.
The top panel is pretty ugly (overlay came off) due to weather wear. Heater is controlled by Jandy Aqualink RS system. I have the heater control panel protected from the elements.
When I put the Jandy controller on service mode and enable heater, the heater control panel lights up and red "Service Heater" light is on.
On the Jandy control box, I replaced the relays, as this have caused similar symptons with the pumps.
Any suggestions on trouble shooting or experience with similar issues?