Channel A Issues on 2062

I'm having problems with Channel A supplying more current than I am requesting on my 2602. For example, I have a 1k resistor between pins one and four in the back of the unit and has it supplying 0.1 mA, but the results are showing 0.937 mA. I have tested this on Channel B with no problems, along with my other 2602's (B versions), which have no problems on either channel. Do you know what could be causing this problem?
Thanks

Unfortunately it sounds like you'll need to send the instrument in for repair. Request an RMA here: https://www.tek.com/en/services/repair/rma-request