Troubleshoot CPI MEI Cashflow 7000 coin mechanism rejecting all coins with loud whirring. Diagnostic steps, safety warnings, and prevention tips.
The Cashflow 7000 typically requires 24V DC +/- 10%.
Refer to the Cashflow 7000 service manual for specific instructions. It usually involves pressing a sequence of buttons on the control panel.
Typically infrared (IR) reflectance sensors are used to determine coin characteristics.
The Cashflow 7000 utilizes a 24V DC motor for coin acceptance and routing. Optical sensors detect coin size and material composition. Logic board controls solenoid-activated gates to direct coins to the appropriate payout tubes or reject chute. Rejection often correlates with sensor malfunction, motor obstruction, or solenoid failure. ESD (Electrostatic Discharge) events can corrupt the logic board's programming. Coin validation is handled by firmware, which can be affected by power fluctuations.
The CPI MEI Cashflow 7000 coin mechanism emits a loud whirring noise and consistently rejects all coin denominations.
High voltage is present within the kiosk. Lockout/Tagout (LOTO) procedures are mandatory before performing any maintenance. Ensure the power is disconnected and verified before accessing any internal components. Wear appropriate personal protective equipment (PPE), including safety glasses and gloves. Static discharge can damage electronic components. Use ESD-safe practices when handling circuit boards.
Regularly clean the coin entry and exit points to prevent debris accumulation. Implement a scheduled maintenance program that includes sensor cleaning and coin path inspection. Ensure adequate ventilation around the Cashflow 7000 to prevent overheating. Use surge protectors to protect against power fluctuations.
Check the coin mechanism's grounding connection. A loose or corroded ground can cause erratic behaviour and coin rejection. Reseat the connector and apply dielectric grease to improve conductivity and prevent corrosion. If available, compare the coin acceptance rate with similar machines on the same power circuit.