Thanks for helping me friend! The pump works perfectly and drains everything .. the problem is that after sqcqr all the water in the tank is energized it and no more until it gives error .. cold and hot water intermittently ... I also discovered that the pressure switch Electronic direct current arrives and not 5 volts direct current as it should and keep in mind that the board is new .. thank you very much for your time! !
When it starts to empty, take out the pressure switch hose to see what it does, if the pressure switch is electronic, it would have to reach 5 V DC, did you get a plate equal to the previous one? Regards.