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Garmin SL40 Com problem

Rallylancer122

Well Known Member
Hi Folks,

My Garmin SL40 has a small but concerning issue. When I turn it on, I can hear a faint high pitched whining noise. When I say I can hear it, it is NOT coming through the headset. I hear it in cockpit in the hanger with the engine off and the radio master on. It is intermittent, but I would say it whines the majority of the time.

Does Garmin still repair these? Or is this something someone has run into before and repaired themselves?

Thanks,
DEM
 
Garmin still does factory repairs of the SL40. The SL40 on my Grumman failed this past November (would not transmit nor receive). The avionics shop sent it back to Garmin who repaired it and returned it. Garmin cost was a flat $800, plus shipping.
 
Do you only hear the noise in the hangar? I have seen similar problem in my hangar, and other hangars, but it goes away outside...away from buildings.
 
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