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Samuel TapiaJul 26, 2025
How to troubleshoot Garmin GPS GNC 255 when it does not power on?
- EEmma StoneJul 26, 2025
If your Garmin GPS GNC 255 does not power on, it could be due to a lack of power. Check the power connections, breakers, and the main avionics switch. Alternatively, a faulty electrical wiring or connection could be the cause. In this case, contact your dealer to perform an electrical system test.
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