Try using software to manage the power, if it’s smooth under that, it’s a 
hardware issue (work/dirty control).

You could clean it, but in the long run it’s better to swap it out (or have 
someone qualified to do that for you).

73,
Rick nk7i

> On Jul 9, 2025, at 11:52 AM, Joe Subich, W4TV via Elecraft 
> <[email protected]> wrote:
> 
> 
> Likely a worn/dirty encoder.  They can be changed if you are
> comfortable doing so, otherwise Elecraft service are experts
> in restoring the K3/K3s.
> 
> 73,
> 
>   ... Joe, W4TV
> 
>> On 2025-07-09 2:41 PM, Dave Tulloss via Elecraft wrote:
>> My Elecraft K3, Serial # 6375, I bought in 2012 and built. It has been and
>> still is a great rig. The only problem now that is irritating is the power
>> control is erratic. Sometimes it will not change, sometimes it moves the
>> power increments slowly, erratically. The Comp position of the control
>> exhibits the same erratic behavior. I am not sure if it is the potentiometer
>> or something else.
>>  Any ideas on the cause would be greatly appreciated.
>>  73,
>>  Dave K7DRT
>>  
> 
> 
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