Panasonic TV 11 Green Blink Code but working fine

Hi there,

I have a Panasonic Viera TX-CX680 TV, circa 2015 & I’m getting an 11 green blink code* error, but the TV operates perfectly. I am concerned that the error will escalate to a failure at some point.

Most information about this error code online is old, referring to red codes on plasma tv’s, although the error is reported as “Fan SOS PB Board'“. There are no fans in this LCD unit, just heat sinks, so clearly that information relates to Plasma TVs and is out of date.

I know it’s odd, but does anyone know why an error report would occur when it’s working fine. I have done a Service level reset to no avail, although the firmware remained the same.

The usual Service menu seems to be missing, with the TV Vol- & 3 presses of the info (or 0) button. Although TV Vol- & 3 presses of the red button on the remote brings up a rudimentary menu. There is a diagnostics test too that passes. Nothing obvious here.

Maybe there is a new way of accessing the Service Menu that I have not found online? In any case I wouldn’t know what to look for!

Any guidance would be appreciated.

Thanks folks.

*Please note, this question has been modified. I misread the number of flashes due to their speed. I videoed and playing back in slow mode, I was able to see the correct error number, apologies.

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