Gary,

If you are not afraid of disassembling your K3, remove the Front Panel assembly and swap the encoder A with encoder B. If the problem follows the encoder, then order a new encoder from Elecraft. If that is not the problem, contact [email protected] for additional checks.

73,
Don W3FPR

On 1/26/2020 5:34 PM, Gary K9GS wrote:
I just had my K3 in for service and a checkup.  I REALLY hope I can avoid 
sending it in again. The VFO B knob is completely dead.  Turning it does not 
tune VFO B.  Also tried the config screen...same thing.I suspect the encoder is 
bad but it showed no symptoms prior..otherwise I would have had it changed out 
when I sent it in.All other front panel functions appear to work.Any 
ideas?73,Gary K9GS
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