The 145 is an older head with 2 way acceptance.
It will only register older bills, none of the new money is accepted.
In addition to the cleaning:
- sometimes belts need to be replaced as they stretch and slip over time.
- A calibration card will help it detect the money correctly.
My suggestion is go to a WBA200 head that can support the new money, its a simple swap of the head and power supply - pretty plug and play.
Buying from a reputable vendor (ie the ones listed on our home page) will ensure you get one that has been upgraded and tested.
The WBA11/12/13 series are even better but then you need to change the transport etc and its a bigger deal.