Challenger ap28 alarm going off every 2 hours

[taylor1984]

Yesterday I was having a kitchen fitted and 1 of the fitters hit 1 of the sensors removing a cupboard and ever since then the alarm keeps going off random times sometimes 5 minutes other times as long as every 2 hours but never longer! I put the code and then # and stops.

So my question is there any way to stop the alarm keeps going off or reset it for anything?

Any help greatfully appreciated

 

[sparkymarka]

A check detector lid ( either it’s broke or just needs putting back on correctly )
Open panel lid and leave it open it won’t reset …it won’t activate again