We went traveling around the world for 2.5 years so we locked up our vintage 2003 Jacquzzi hot tub so renters wouldn't mess with it. I blew out the lines as best I could for freeze protection. I shoved a rag down the input to the pump at the filter just to make sure "things" didn't get down there.
Filled it up yesterday and when I started it up the pump came on and pumped a bunch of white stuff out. I imagine it must be scale or dried salts from the lines. Dunno.
But I also got the FL1 error code. I have taken the filters off and checked the input to the pump. No problem there, nor did I expect any as I can visualy see and hear the pump working. Could the heaters be fried? Water temp is in the 50s (tap) and with this error code, no heating is being done.
What troubleshooting can I do? Thanks in advance for any help you can provide. I am pretty mechanical, but have little knowledge about a spa other than it has a pump, filters, heater, hoses, and that sort of thing.