I have the leaflet explaining why the alarm would go off. But twice today my alarm has gone off twice a time every few seconds but doesn't explain this pattern on the leaflet so I'm not sure why? Leaflet states when faulty and when battery needs changing and they and the detection of carbon monoxide don't describe how my alarm is going off?

Hi Lauren

You need to take any alarms seriously. Normally, the alarms will go off for longer periods when CO is detected, however, there might only be occasional CO gas spikes, eg when your boiler switches on etc. Here is a guide about what to do when your CO alarm goes off

Harry

Hi can I ask if it's normal to get a reading or not? Fire angel carbon monoxide alarm has a highest reading of 18ppm over a 4 week period. Should we call the gas board or is this normal? Boiler is in a bedroom.

thanks. 

Hi Claire, personally I would find that unacceptable. There is not really a harmless level of CO, as every CO molecule can basically block a red blood cell from transporting oxygen.

Harry