In another thread I describe how I replaced the heat exchanger on my D2-55, which went surprisingly well.
But in the end, Murphy got me.
When I tested the engine after the repair, I would get a battery warning in the display of the RPM gauge. I measured here and measured there but could not identify a problem.
There was no under voltage lower then 13V and not over voltage above 15V. The starter. battery was at 14.6V and the LiFePo4s at 14.3V.
I'm charging using two Victron B2B 30A chargers. The starter battery is new, so are the the LiFePo4s and also the generator is a brand new 115A Mitsubishi.
When searching more, I found that the +12V sensing cable connected to the generator was damaged, cracked and fell off the moment I touched it.
I gave it a new wire terminal and didn't pay attention while reconnecting it to the generator: I made contact with the generator's casing and the sparks were flying.
When all was done, I wanted to check if the battery warning had gone but then the engine controls were dead.
- Pressing the power button on the MDI control panel in the cockpit won't power up the display of the RPM gauge.
- Starting the engine is no longer possible, pressing the starter button does nothing.
I checked the following to see if it was any main fuse that would have been blown:
- There's +12V leading to the starter
- There are +12V leading to the MDI box
That makes think that, no, there's no fuse blown.
I opened the MDI box to see if it has a fuse in it. Negative. This is one of the old versions without a fuse.
I have now ordered a new MDI box, hoping that it will fix the problem.
Can anyone comment on the issue and confirm that what I did could actually blow the MDI box?
I have the old MDI box here, is there any way of verifying that's it's fried?
