August 6, 201114 yr Through out my flights the window heat on lights will go on and off really randomly. there's not an overheat condition, the lights just turn off. What's the deal? Mitch Bowman Mitch Brown Private Pilot | Aerospace Engineering Major
August 6, 201114 yr I've had the same thing happen to me, although that was with very high OAT and subsequent duct overheats so I thought it was to do with that. Would be good to know if this is a bug or something that's supposed to happen! Rob Taylor
August 6, 201114 yr Automatic shutoffs if it gets too hot. It's safe to leave them in the on position no matter the OAT. They should turn back on if more heat is needed. Michael Freudeman
August 6, 201114 yr It is normal to seem the cycle off on the ground on hot days. I have never noticed them cycle off in flight though. I think the temp to cycle off it 100 degrees F. Either that or 110 F. Tom Landry
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