DonMuncy Posted January 16, 2015 Report Posted January 16, 2015 I'm trouble shooting an intermittent gear horn warning failure. In tracing out the wiring, I find the horn is tied into the cabin lights. Since the cabin lights are not run through the master switch, can anyone come up with a reason why the gear horn would be tied in there. Quote
carusoam Posted January 16, 2015 Report Posted January 16, 2015 It may make sense if the stall warning horn was not turned off with the master switch... This was typical in the 60’s Mooneys... But the gear warning not on the master switch doesn't make much sense to me. Gear switch and throttle position switch supply the power to gear warning... The two horns are side by side but the original wiring supplied power through the gear switch for one and through the bus bar for the other. Is it the stall warning horn, by chance? Does your gear warning system work properly? Trying to be helpful... Best regards, -a- Quote
DonMuncy Posted January 16, 2015 Author Report Posted January 16, 2015 As a matter of fact, I have a "Bitchin Betty" audio warning, but she is tied into the same electrical circuit as the horn. So it isn't the horn itself. I suppose the horn could operate outside the master switch, but since the gear is always down when on the ground, naturally I have never heard it with the master off. And it doesn't make any sense to me to operate it outside the master. Quote
DonMuncy Posted January 16, 2015 Author Report Posted January 16, 2015 Now that I am thinking about it further, perhaps they are grounding the horn through the ground wires on the cabin light system (since the cabin lights are in near physical proximity to the horn). I need to trace the wiring further. Quote
DonMuncy Posted January 16, 2015 Author Report Posted January 16, 2015 Yes, it is the ground. Sorry to have bothered you. Quote
carusoam Posted January 16, 2015 Report Posted January 16, 2015 I reviewed my wiring diagrams for C - F... They indicate that the gear horn uses the gear switch that is supplied by the same bus that comes on with turn coordinator and interior lights. Best regards, -a- Quote
carusoam Posted January 16, 2015 Report Posted January 16, 2015 No bother, my books need reviewing... Quote
RobertGary1 Posted January 16, 2015 Report Posted January 16, 2015 $10 says your issue is internal to the horn. Super common problem and inexpensive. Quote
BTR Posted February 13, 2015 Report Posted February 13, 2015 $10 says your issue is internal to the horn. Super common problem and inexpensive. In a search through the threads to find where to look to stop my annoying horn on the ground, I found your comment. Can you briefly explain. Thanks Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.