Hi @jolugo, sorry you’ve had such an unfortunate experience with your power supply, 220V has quite a punch doesn’t it?
Since you seem to have access to an ac volt meter, I would check the voltage between SC and SP terminals while using the AC to AC transformer (with unit misbehaving). I would also test a DC voltage between the same terminals.
If you are getting only half your expected AC voltage on these terminals and there is some DC voltage on the meter, then you may have an issue with a bridge rectifier and would need to send the unit in for repair (or take it apart and repair it yourself).
P.S. In case you are using Gen 1 controller, thus missing “SC / SP” terminals, you should measure the AC voltage between the Right White Common Terminal and the Top most Yellow sensor terminal (not the one immediately adjacent to the right white terminal).