Worked fine last year. This year, we run it for 2 hours and the FL comes on. We'll drain it and turn it back on and 2 hours later, FL comes back on. This did not happen last year. If I drain via the top drain using Auto Clean, I barely get any water out, so we have been draining from the bottom drain into a bucket and get a lot more out of it. Been running in Cool mode (saw the post on Cool & Dry but we don't use dry mode). I run the fan on the slowest setting as well.
SOURCE: ac unit keeps reading fl
After reading over the Owner's Manual for your unit, I wonder if you are operating it in the Cool & Dry Mode. If that's the case, the dehumidifier is in operation, which would account for having to drain the unit every 2 to 3 hours. Ideally, the Cool and Dry Mode should only be operated for about an hour, when the unit is first started . Removing the humidity will allow the AC function to cool more effectively. But, it is not necessary for it to remain in Cool & Dry mode all the time. Because the AC itself unit will remove some humidity too.
Hope this helped you to troubleshoot and solve the issue of having to drain the unit every 2 to 3 hours
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