Quote:
Originally Posted by Flod
Ok, found the relay! It sat behind the vhf but with a sign that indicated that it belonged to the fridge. .
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That makes me suspect that there is more than one thing wrong here. If I was working on this
boat I woul ddo a detailed
survey of all the
wiring before starting to change things.
Quote:
Originally Posted by Flod
It's a 4 pin 40 amp Bosch relay.
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If it is a 4-pin (not 5-pin) relay then it will not have an 87a pin that turns on when the signal turns off. My specific theory does not apply.
Quote:
Originally Posted by Flod
I have the alternator current on pin 87 and the windlass controll on pin 86. I'm tempted to switch those two so that alernator gets on 86 and the windlass control gets on 87.
What do you think? When engine is off I have 12v on pin 86 and 85 and 0 on 87. I can hear the relay draws when putting on the switch "commande guindeu"
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If this relay is meant to control the windlass then it should have the following wires connected to it. Note there is more than one way of doing this but you have to be consistent overall..
- 85 and 86 should be connected to wires that have 12V difference between them (it does not matter which way) when the windlass is meant to be operable (be it when a small-current breaker in the panel is on or when the ignition is on, as seen by 12V+ potential in a certain wire of the
Yanmar harness, which is probably used to activate one more relay that gives ignition signal to various things without overloading the thin
Yanmar wire.)
- 30 and 87 should be connected in series (direction does not matter) with the thin positive or negative wires that go to the
Lofrans solenoid/relay, say in the thin red wire between footswitch and
battery positive terminal, or the thin black wire between C and
battery negative terminal. I need to know which if the two "options" applies to your
boat.
You get the prize for supplementing your question with much relevant data, whihc is missing in many "help me" posts.
If you can report how does what you have compare with what I described above I am sure we can make it
work.
At a minimum before you switch 86 and 87, check that the following is true (to ensure consistency)
- if you will connect 87 to C make sure 30 is connected to battery negative
- make sure 85 is connected to battery negative.
- note that the panel breaker will not have any effect; you will only be using ignition (or whatever you call "alternator")
Also ensure there are small
fuses (probably cylinder shaped glass fuses) protecting the wire that goes form battery to 85 or 86.
All that said, I am tempted to suggest that you forget the ignition thing and just use your panel breaker to control the relay. It may be difficult for you to connect both things in series. In this case 85 and 86 should be connected (order does not matter) to the panel breaker (which presumably is fed from a positive bus) and battery negative, with a little fuse somewhere between the panel breaker and the relay (unless the breaker is rated low enough that it will trip before the wire
insulation will overheat because ampacity was exceeded). In this setup there is no need to have a wire that has 12V+ only when ignition is on.