If you say you pulled every CB and you still have the problem you are loosing
your
current before that bus. Your problem is seemingly more than half solved now.
You don't have to go chasing every component down stream of that. Check wiring
and everything upstream of the circuit breakers. Its just a tedious job
of troubleshooting. You may have a short to ground. Start at the positive
terminal
of the battery terminal and work your way back. Take an in line current meter
and keep it attached. First use a clamp to find the magnitude of you extra
current draw. That should give you some sort of clue. However if it is in the
fractional amp range use a multi meter in line as the positive battery lead
and just start disconnecting a wire at a time between downstream of the battery
and upstream of the cb bus. When you current draw drops away when you disconnect
a certain wire you then go to everything that wire goes to. Including the
wires themselves. You may have some abraided insulation and have a slight short
to ground or another wire. Look at any funny looking corrosion or debris
around terminals etc. This is just a typical troubleshooting job. Someone will
charge you a lot of money. Don't turn anything on or push the circuit breakers
in if you don't want to have the ammeter on your multi meter smoked.
Steve Hagar
A 143
Mesa Az
-----Original Message-----
>From: Alan Carter <alancarteresq@onetel.net>
>Sent: Sep 3, 2016 1:04 AM
>To: europa-list@matronics.com
>Subject: Europa-List: Something is stealing my electricity
>
>
>Hello All.
>
>I have had this problem for sometime now, probably posted it here about a year
ago.
>However something is stealing my electricity, my voltmeter really indicates
>above
12 volts and the battery is all the time being very slowly drained over the
course of time.
>
>Just to keep the problem simple,
>Flying 12v indicated, turn the Avionics Master Switch OFF, voltmeter shows say
12.5 volts , pull about every CB ( 914 so not the Fuel pump, but your could do
it momentary if you wanted to)
>So at about this point nearly all the power to the components is OFF
>
>We have the engine modules and a couple of other things live,, but 99% is now
OFF and still showing about 12 volts with practical every thing isolated ie OFF.
Except the Mater Switch, PS I am not a builder,
>
>Now turn the Master Switch OFF, and Hay Presto voltmeter jumps to 14 volts, now
charging the battery nicely.
>
>Fitted, New Battery, New Regulator/Rectifier, Volt meter on the brown cables to
the Rectifier 14volts so no problem with Dynamo/Alt output.
>
>Master Switch ON, clunk Master Switch OFF click,
>Some relay, or starting circuit, When you put the Master ON clunk, is they some
component staying engaged stealing my power when it should have dropped off
line after engine staring ,
>Hence when you switch the Master Switch OFF with the engine running, this
>click
drops something off line which should have automatically dropped off line
but with Master Off is the only to stop power getting to it,so making it drop
off line manually.
>Hence then you get the 14 volts showing.
>
>Any thoughts on this,
>Or a place I can take it to get it fixed,
>
>
>Regards.
>Alan
>
>
>Read this topic online here:
>
>http://forums.matronics.com/viewtopic.php?p=460217#460217
>
>
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