Troubleshooting red flash errors on an ICT A7 bill validator after exposure to extreme cold. Includes diagnostic steps and preventative measures for kiosk environments.
21.6V DC to 26.4V DC
A dry, lint-free, antistatic cloth is recommended.
Every 3-6 months, depending on usage and environmental conditions.
The ICT A7 validator utilizes 24V DC logic for operation of its internal solenoids and optical sensors. Cold temperatures can affect the conductivity of PCB traces, the viscosity of lubricant in moving parts, and the voltage output of the power supply. The optical sensors are calibrated to detect the light refraction and transmission of specific bill polymers at a defined threshold. Temperature shifts can alter the sensor's baseline reading, leading to misidentification.
Unit displays red flashing error after exposure to low temperatures during transport or operation.
Maintain the kiosk environment within the operating temperature range of the ICT A7 validator.,Use a climate-controlled transport environment when moving the validator.,Regularly inspect and clean the bill path to prevent jams.,Apply a thin coat of dielectric grease to connector pins to prevent corrosion.,Implement a scheduled preventative maintenance program, including sensor cleaning and voltage checks.
A rapid temperature change can cause condensation. Placing the validator in a sealed bag with desiccant packs during transport can help mitigate this issue. Verify the ambient humidity level is within the operational range of the A7 validator.