Printer won't turn on after building in enclosure  

Printer won't turn on after building in enclosure

I have a Prusa MK3S+ that was working correctly. I bought the original Prusa enclosure. After following the steps and placing the printer in the enclosure, it no longer turns on. With Claude's help, I started troubleshooting the printer. The next step would be to disconnect all cables from the Einsy board, but before doing that, I'd like to check if this is the way to go.

Things I've checked

• The PSU is working correctly, outputting 24V measured with a multimeter
• When I measure the resistance at the PSU connectors on the Einsy board, I get around 1.9Ω. Claude says this is not normal.
• I disconnected the heatbed, the print fan and the hotend fan. Resistance is still measured at around 1.9Ω.

Should I disconnect all cables from the Einsy board and measure again? Is this the right route to go?

Thanks for your help.