[Elecraft] K3 meter indication problem

[Lee Trout]

I am having an intermittent problem where, on CW transmit, neither the SWR
display nor the RF (power out) display will show any bars.  The actual
power out is normal so this is a display problem only.  I reloaded the
firmware and did a re-initialization with no help.

The K3 is almost ten years old (1737), so I'm suspecting a possible dirty
connector?  Or what?

Any ideas on what to check next appreciated!

Thanks, Lee