AU-800 Troubleshooting Guide - E20–E24: The MG and MT Sensor Faults
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Modern currency, including various international notes handled in Australia, often contains magnetic ink and metal threads. Your RUNTOP AU-800 counter uses MG and MT sensors to verify these. If you see codes E20 through E24, there is a fault or a blockage in these magnetic reading areas.
Cleaning is Key:
Magnetic sensors are sensitive to metallic dust and residue. If you are getting frequent MG errors on genuine notes:
- Turn off the machine and unplug it.
- Use the Nylon Brush to clean the "Banknote Processing Wheel" area where the MG sensors reside.
- Restart the machine.
If the error persists only on specific notes, the machine has successfully identified a note with weak or missing magnetic properties - a common sign of a counterfeit!
If the problem persisits, please contact us by mail: support@runtop.com.au for professional advice.