QS5210-840—Tamper Error

A tamper error occurs when the panel is reading that the sensor’s cover is not attached properly. To address the tamper error on your QS5210-840 carbon monoxide detector, follow the instructions below.

Step-by-Step Instructions:

1. Twist sensor counter-clockwise to remove from base.

2. Close the sensor by aligning with the backplate and twisting clockwise, ensuring the tamper switch is pressed and the sensor is securely closed.