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 QS1150-840 smoke detector, follow the instructions below.
1. Align the sensor over the base, holding it against the base, and twist clockwise to set it in place.
2. You will need to clear the error from the panel memory by following these instructions.
If you need further assistance, you can text a Support Representative at 469.513.8685, 7 days a week from 8 am to 8 pm CT.