Scott,
I guess that' possible... I don't recall but will check. That breaker I have always left in, so that circuit might not go through the Master ! That would be an easy fix ...but the question remains... Why is the pump circuit bleeding when the pump is not running? Yes, the LSA ignition is direct tothebattery and has separate breakers.
Terrence
Sent from my iPad
Terrence,
If you have normal wiring, the Master relay should control all power
- all power connected after the contactor is closed. One side of
the master relay coil is connected to battery + and the Master switch
should ground the other side of the coil to operate the contactor. The one
exception is special wiring for an electronic ignition that might have a direct
to battery power switch.
This means that you should have no battery drain with the master switch off
(and any master relay bypass switch for the electronic ignition).
Is it possible that the power tap for the pump is on the battery side
of the master relay? If so, what else is powered by that CB?.
Interesting,
Scott
PS, the "pump running" light receives iots power from the contactor plate
of the pump control relays (I terminal) only when power is being passed to
the pump.
Terrence,
I'm inferring that you saw an instantaneous
current. ...indicating you see some current when the pump is not
running. Could it be something in how you have your indicator (e.g. pump
running) lights wired?
On Sep 29, 2013, at 10:53 PM, Terrence O'Neill
wrote:
My N211AL is from kit no. 11, and has electric prop, electronic
ignition, dual grant rapids Tech EFIS, autopilot, flaps, navcom, GPS,
transponder, intercom, and retract gear.
My battery kept going dead, so
was advised to put an ammeter on it and see how much it was leaking, and then
start pulling circuit breakers.
It was leaking 18.7 milliamps. I
pulled CBs one at a time and reset them. Would you believe the very last
one stopped the leaking, and the ammeter went to 0.0.
It is the CB for the
hydraulic pump.
Question: why is that circuit leaking when the CB
is in?
The pump works fine.
I have added a pressure switch to
keep the gear down and the airspeed is below about 85 mph ... or to put the
gear down when the airspeed drops below 85k. The pump is off when the Master
is off.
Is there something in the pump circuit that allows it to
bleed?
(For now I'm adding to the Check List for Shutdown: Hyd.
Gear CB -- out.)
Any suggestions
welcomed.
Terrence
N211AL L235/320
About 200 hrs.
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