First problem with my MEI Mars bill acceptor?

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I guess it had to happen?  My Mars bill acceptor wanted to go on a road trip, so it ate its belts.  It might be jealous of my Rowe International BA-50 bill acceptors which get to go on a trip to the repair man every year. 

So I have owned car washes for around 4 years and had one real Mars bill acceptor problem (I own 2).  But my Rowe BA-50 (own 5) breaks an average of once a year and probably have cost me $800 over the last 4 years?  You know I hate my Rowe changers even more now.  I also need to fix 2 more of my BA-50 bill acceptors now.

Summary:  I love MEI Mars bill acceptors and I HATE Rowe BA-50 bill acceptors.