Other, other text: one unit was returned for investigation.Upon physical inspection, it was found that the complained issue could be duplicated.Malfunctioning co2 pump mechanism was unable to draw adequate airflow through the pneumatics.A good known co2 pump was swapped to bring the airflow to within range.However, the tamper seal was broken and the main board was dislodged from the back panel referring to user tampering and/or drop damage.Therefore, unable to determine what caused the co2 pump failed.Further dhr review is not relevant because the results of the complaint investigation do not indicate a problem with the initial manufacture or prior repair of the device.
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