Posted 29 June 2017 - 10:14 AM
No, Floyds suggestion makes more sense. Rectifier is only an array of 4 diodes. It either works or doesnt. On the other hand, if there is a poor solder connection, at the rectifier, then that is possibility. Otherwise, switching the rectifier with these symptoms will be 98% a wasted effort.
Unfortunately I don't know of the existence of schematic but I have seen similar symptoms on the Wheely's when a zener diode goes out. But the problem is that without reference, it is often hard to know what zener spec to stuff in there.
Why don't you start by checking system voltage during operation, both at normal and max (cut out) conditions.