Diagnosing and resolving 'Transaction Blocked' errors on Moneris API terminals. Safe handling, potential causes, and professional solutions for retail environments.
Check both ends of the cable for a firm connection.
If yes, the issue may be with the network itself rather than the terminal.
Recent firewall modifications could be blocking the terminal's access to the payment processor.
Transaction blocking can originate from several points: (1) Terminal's EMV chip reader failing to initialize (voltage fluctuation). (2) Interruption in network communication (TCP/IP stack). (3) Software error flags raised within the payment application. (4) EMV chip reader failing to initialize due to wear and tear. (5) Tampering error initiated by static discharge during dry weather (ESD).
Electric shock hazard: Always unplug the terminal before cleaning. Do not use excessive force when plugging or unplugging cables to avoid damaging the connectors. Tripping hazard: Ensure that cables are properly routed to prevent tripping. Never attempt to open the terminal casing. This device contains sensitive components and any unauthorized access or modification may result in permanent damage.
1. Regularly clean the terminal's touchscreen with a soft, lint-free cloth. Avoid using abrasive cleaners. 2. Ensure adequate ventilation around the terminal to prevent overheating. 3. Implement cable management to prevent strain on the power and network cables. 4. Consider using a surge protector to protect the terminal from power surges. 5. During dry winter months, use anti-static mats and wrist straps to minimize the risk of ESD damage.
Before contacting technical support, try cycling the terminal's power by unplugging it for at least 30 seconds. This often resolves minor software glitches. Document the exact time the error occurred; it will assist the support team with their logs. Confirm pinpad connection (voltage) to the main unit.