Hi Alan,
You mention that the problem exists when you have the master switch on. You
need to establish if you have an electrically actuated battery isolation
switch. If you have, then this by itself will drain current to keep it
closed. ie to connect the battery to your circuits. You may find that the
builder of your aircraft used a starter isolation relay in error. These are
not continuously rated and do consume at least 3 amps to keep them closed.
Probably your problem.
Pete
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Alan Carter
Sent: 03 September 2016 09:05
Subject: Europa-List: Something is stealing my electricity
--> <alancarteresq@onetel.net>
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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