I am getting c9050 and c9040 errors frequently. The Lift Motor and the DP Main PWB has been replaced. I didn't replace either of the limit switches because I was getting the lower limit and upper limit error which seems to me that the switches work since I am getting errors for it not lifting or lowering. I've ran the motor in the U243 and it's lifts and lowers with no issues. I've ran stacks of paper thru it with U203. I've watched the customer scan stacks with no issue. I've never actually been there to see it fail but after replacing the motor and before replacing the PWB the service log showed 8 c9040 and 7 c9050. Any ideas or tips would be appreciated.
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