REPAIRING The Marlec Solar iBoost+ Plus - Solar Immersion Controller

This one was sent in by a customer with no power and no sign of life. The customer had tried to replace the fuse and this seemed to blow other things up down the line too.
After replacing the bridge rectifier which is a common failure on these and it still being dead I then ended up going over the board to find other points of failure, to try and figure out why it still wasn't playing ball.
I got there in the end though and it's now fully working and ready to send back to the customer.