Hi, looking for a bit of advice. I have recently removed a fish finder and transducer from my boat, but since doing this, I can't get power to ignition or dials on my dash.

I have tested the battery and was showing 12.5v so have put it on charge.

With all wires connected, I have power to my battery isolator switch, but nothing working on my helm. I have tested the bus bar for my electronics and read about 0.5. If I just connect the bus bar to the battery and nothing else, I get 12.5v.

Any ideas as to what check next and wondering if I have pulled something loose.

I have put battery on charge to make sure it is fully charged, just in case this is the issue.

Any advice appreciated.

Thanks Smudge will check that tonight and see if it works.

A bit hard for me to follow off a description sorry. Are you sure you haven't mistakenly reversed the polarity to the motor?

Thanks Smudge, I'm pretty certain I haven't as simply removed a fish finder from the helm and the chased the transducer cable to the transom.

I've then routed the new transducer and didnt touch anything until I started to see what the issue could be.

I will need to find someway of manually lifting the motor and take it to a professional to have a look at, as its beyond me and guessing it will be something simple, damaged wire or earth somewhere.

Thanks for the reply and advice.

If you have run a new positive wire up from the battery and you read 12v up at the helm then the earth wire looks like it’s intact. looks to me like you have blown a fuse or pulled a connector apart, there will be either an inline fuse or a fuse box up behind the helm somewhere.

Start by tracing the positive wire up from the battery to the helm, best way to do this is to buy a 12 volt test light, the white plastic ones are good. Run a long earth wire back from the helm and clip the test light dog clip onto this.

The test light has a sharp pin sticking out of one end and you can poke this through the plastic cover of the wire and the test light should eliminate. Keep doing this as you trace the positive wire up to wards the helm and you should find the problem.

Great to hear you sorted it.