hi all, I've just fitted a new mecerator as the old one was leaking. I've fitted it but it won't work (no power) also the electric flush toilet switches don't work either. All were ok before the new macerator was fitted. Any ideas? Boat is a prestige 42s. thank you.
It's a bit unclear what you mean when you say the switches "don't work". Regardless of what you mean, the way to figure this out is the same. Bust out a multimeter and measure if power is getting to the wiring on the macerator. If it is then either the macerator is busted or the connection to the macerator is bad. Otherwise trace the circuit back until you find power. As Trevor says it's probably a switch that's open. But if it's not then it's a bad connection somewhere.
Update on this - my engineer traced the fault back to a PCB which was not protected by fuses so the PCB was wrecked (sounds unusual to me but I'm new to the brand). This happened when he replaced the macerator pump after which the pump would not work and the two electric flush switches also failed to work. I think he may have tried to run the new pump with the sea cock closed but I wasn't there so hard to prove.
I'd welcome comments regarding the lack of fuses to protect the electronics.