sglynn
Well Known Member
I'm having an electrical issue I hope someone has experienced and knows the solution. I'm doing the final panel install now and testing. Lots of things work, but when I turn on the landing lights the audio panel, radio and sometimes the EFIS reboot. Turning on the lights is causing a temporary electrical power drain. I can see on the Garmin 430 it goes into no power screen for a second before it fires up again. If I leave lights on everything comes on and stays on fine. The wings aren't attached to fuselage yet so I can test each wing separately This power drain is happening on the left wing only. The different between the wings is the right wing, which works fine has a servo with a ground that goes all the way back to panel. I'm using a Control Module like VP-X. Lights are locally grounded. If I isolate the right wing the lights still work so they must be using the servo ground. When I isolate the left wing, lights don't work. There are only local grounds in the left wing, so when I disconnect it from fuselage there is no ground. But it is this wing that is causing the power suck that reboots avionics when ground to fuselage is attached.
So, what can cause a power suck for an instant?
I'm using a power supply 14.2V good to 30 amps. I'm seeing less than 20amps. My lights are GE bulbs they suck 5-8 amps. I'm thinking something with grounds.
Ideas?
So, what can cause a power suck for an instant?
I'm using a power supply 14.2V good to 30 amps. I'm seeing less than 20amps. My lights are GE bulbs they suck 5-8 amps. I'm thinking something with grounds.
Ideas?