I have a dynasty spas with a Gecko in.XE 5-11-H4.0 spa pack.
On reboot, It is stuck showing the warning message saying check controller cable or update pack software....
There is a regular relay click rom the pack.
I read in this post "Gecko in.xe stuck in boot loop" by Mattevans, that it could be the low voltage power supply.
Has anyone done this repair with good result?
Thanks