N941WR
Legacy Member
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?
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?