Sorry if it seemed harsh, really not meant to; first google search: https://www.cricalix.net/wp-content/uploads/2021/07/ST50-Wind-Transducer-Repair.pdf
Followed to the letter, then while going up the mast the whole transducer rod fell in the water, dive to recover it and do it all over again, all fine
Other sets of instructions available too, though very similar