I run my spa with Balboa package 24/7/ Appox every 3 to 4 months, I get an error code that translate to "overheat" problem and spa shuts down. Sometimes it's an
"HH" sometimes something else.
Of course the solution is to hit any button on the panel and it will start up again.
I've never had this happen in the many years I have had the spa; even the controll M7 package has been changed over time; about 6 years ago (as well as heater and pumps every 4 to 5 years.
Since it's so infrequent, does anyone have any idea what is causing it.