Has anyone else experienced an erratic engine display on their 2021 275 Freedom? i brought the boat back to the dealer and they told me they found a loose connection and the problem is fixed. I just towed the boat from Maine to the Florida Keys, and the engine display is still erratic. Suggestions?
Erratic Engine display
- Thread starter Goodstuff
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SkunkBoat
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what do you mean by "erratic? Do you mean it blips off and then boots up again? or is the screen flickering? or is it just the displayed data that is erratic?
Is it a Yamaha CL7 or is is a Garmin mfd or other brand mfd?
Is it a Yamaha CL7 or is is a Garmin mfd or other brand mfd?
The entire engine display chatters as if you were shaking a loose ground wire. I have a video of the display but can’t upload it.
No it only garbles when underway, and only occasionally..it tends to happen towards the end of a ride, never at the beginning.
The display does in fact get garbled when the ignition is on and the engines are not running.
I suspect that the display also wiggles during initial self test. If so, it looks to me that the display is bad.I would ask the dealer to swap it and see if it works correctly
SkunkBoat
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I don't think any Gradys came standard with a ground plate. Not necessary unless you have a Single Side Band radio
SkunkBoat
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My first reaction is that a power connection problem would cause the unit to reboot and also give you a low voltage error.
The picture points me to a bad unit. The screen is not scanning correctly giving you a doubled picture.(or its "rolling" vertically)
And you describe it only after running a while... after it has heated up
The only other thing would be interference in the power from a sonar or radar or radio.
If you have a Garmin MFD you could swap the connection to the J1939 port on the Garmin and get your engine data there.
The picture points me to a bad unit. The screen is not scanning correctly giving you a doubled picture.(or its "rolling" vertically)
And you describe it only after running a while... after it has heated up
The only other thing would be interference in the power from a sonar or radar or radio.
If you have a Garmin MFD you could swap the connection to the J1939 port on the Garmin and get your engine data there.
Last edited:
I do have a Garmin MFD and the same screen works fine on that unit while the smaller screen goes crazy. I have checked all of the connections on the engine display and I am not able to induce any problems. I will contact my dealer, again, and insist on a new display unit. Thank you for your input.
