Plaqueta universal PG control. Aire acondicionado. E3.

I replaced the circuit board with a universal one. The turbine motor didn't cooperate during this process. It's running at low speed. I'm not going to replace it. I think it would be better to replace the entire indoor unit or the whole system. It's a private school, and this unit has been malfunctioning for a long time. Apparently, they didn't connect the outdoor unit's sensor to the circuit board during installation, and this triggered a series of failures. I uploaded the video anyway because I thought there were a couple of tips that might help someone having problems with the E3. Cheers, and see you in the next video!