Zanussi Dishwasher Top Spinner not revolvolving?

My Zanussi dishwasher works ok but the items on the top shelf do not get cleaned an i have discovered the top 'spinner arm ' is hot turning
Ihave made sure the arm is freee and it is not blocked .
water is spraying out but the arm will not spin

any ideas
Vernon Whiting, July 2004


done
Most likely paper stuck in the arm ..this stops water flow!

Raj Shah, September 2004
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