I've been struggling with our ATO the last few weeks. Its the Fzone smart ato w controller. I set it up, they call initialize, and everything was peachy. After a week, I noticed it was filling up past the high level switch on several occasions. The 1st time this happened, an alarm went off, and I paused the unit. Checking everything over didn't yield an answer, so I re- initialized the unit again.
A couple days go by, its working like advertised, then like a toddler throwing a tantrum, blam it fills past the high level. I moved the switch thinking bubbles were causing the issue. It seemed to help a couple days, then last night it filled past the switch again. I've never seen the red overfill alarm again, and wondering what I'm doing wrong
Any suggestions welcome
Here's the ATO I'm using

A couple days go by, its working like advertised, then like a toddler throwing a tantrum, blam it fills past the high level. I moved the switch thinking bubbles were causing the issue. It seemed to help a couple days, then last night it filled past the switch again. I've never seen the red overfill alarm again, and wondering what I'm doing wrong
Any suggestions welcome
Here's the ATO I'm using


