Why Honeywell Gas Detectors won't turn on?
- TThomas HollandSep 15, 2025
If your Honeywell Gas Detector won't turn on, check the external connection. If the battery is too low, plug the SPM Flex in to recharge the battery or use an external power supply and confirm that the blue light is present in the LED status bar. If the battery pack is overly discharged, the detector will not turn on unless plugged in to the external power.