themadreefer
New member
alarm started on one of my 7400 pumps, disconnected din pin from controller and alarm was still emitting, disconnected transformer, and alarm stopped.
connected another 7400 to the above driver, and same exact senario took place.
connected another 7400 with a different transformer to the above driver, and same exact senario took place.
seems something is wrong with this driver.
please advise.
thanks archie april
connected another 7400 to the above driver, and same exact senario took place.
connected another 7400 with a different transformer to the above driver, and same exact senario took place.
seems something is wrong with this driver.
please advise.
thanks archie april