hayward prologic communication error

We are getting a communication error on our Hayward Prologic Aqua Plus System causing nothing to work (Pump, salt system etc. ). I followed the troubleshooting video with a multimeter and the I believe the transformer is bad. It's under warranty and a tech is coming next Friday. In the meantime...

My Prologic has started to periodically turn off, but the main display reads "Communication Error". The transformer was running really hot, so I tested the Ohms and it was slightly out of spec 2.9 and 3.3. As result I replaced the transformer. The problem is persisting even with the new...