Optima XM sounding outside but no fault on control panel?
My Optima XM house alarm keeps going off intermitently and switches between the full-on alarm noise to a very annoying high pitched squealing noise! The flashing light doesn't seem to go on at all though
There is no indication that anything is wrong on the control panel, but I have tried entering the code and resetting it anyway, but it makes no difference.
We've not had any works going on at the house lately to interfere with the alarm and haven't had any power cuts.
Any idea why it's doing it and how I stop it!
Thank you
LaraD, January 2010