I'm not dead yet...

[N941WR]

My panel has a 496 mounted in an AirGizmo PanelDoc and wired into the electrical system.

On a recent flight I realized the 496 wasn't powering up with the Avionics Master. Figuring that I must have a problem with either the power or ground wire I got out my handy multi-meter and started snooping around.

I found that the ground connection was solid but the voltage coming off the positive lead was just under 10, even though the battery was fully charged.

Next up was to test the voltage coming from the circuit breaker and I found that only a few volts were getting past the breaker. Pulling and resetting it didn't change the voltage. While I was at it, I checked the other breakers on the avionics buss and they all report well over 12 volts with only the 3 amp GPS breaker registering low.

Before I order a replacement breaker, I would like to know if any of you ever experienced this before?

[Mike S]

Cycle it a dozen or more times, and recheck the voltage.

[WAM120RV]

Hi

Yes had exactly the same problem...... replaced the breaker.

[N941WR]

Originally Posted by Mike S

Cycle it a dozen or more times, and recheck the voltage.

That was the easiest fix EVER!

Originally Posted by WAM120RV

Hi

Yes had exactly the same problem...... replaced the breaker.

While cycling the breaker forty or fifty times got it to work, I will order a replacement.

Five years and 500 hours until death, not too bad.

Thanks!

BTW this is the second breaker to go bad on my RV. Early on I went through two breaker - switches for my fuel pump. Leaving the canopy closed on a hot ramp during the summer would prevent the breaker-switch from staying on. The third on was more heat tolerant than the first two.

[Ironflight]

You now get the rating of "Astronaut Candidate Trainee Assistant Third Class" Bill. The first fix for a loss of power on a Shuttle system (with no associated spikes) was to cycle the breaker once. If it stayed in, but didn't conduct, we then cycled it five times (to scrub the contacts). That usually worked. Remember, those birds were thirty years old....

[N941WR]

Originally Posted by Ironflight

You now get the rating of "Astronaut Candidate Trainee Assistant Third Class" Bill. The first fix for a loss of power on a Shuttle system (with no associated spikes) was to cycle the breaker once. If it stayed in, but didn't conduct, we then cycled it five times (to scrub the contacts). That usually worked. Remember, those birds were thirty years old....

Thanks Paul!

I did reset it a few times in flight but to no avail. After about the 50th reset, it started working again. Go figure. Still, I need to order a replacement.

[N941WR]

Today I had to order a few small items from Aircraft Spruce and though I would order up a replacement 3 amp pullable breaker.

WRONG!

Check out the prices of the breakers, in particular the 3 amp breaker. What the heck is up with this price? I even called and they confirmed that was the correct price. Surely $81.75 can't be right!

http://www.aircraftspruce.com/catalo...ircuitbrkr.php

[Mike S]

http://www.bandc.biz/circuitbreakers1athrough20a.aspx

[N941WR]

Originally Posted by Mike S

http://www.bandc.biz/circuitbreakers1athrough20a.aspx

Thanks Mike but those are different breakers than what I already have in the plane. Besides, I don't think those are the pullable type.

[Mike S]

Yes, they are pullable------what I have in the 10.