Silent Clifford Operation (Concept300) Grrr
 

hey guys i gotta clifford concept 300 and coupla times now when i lock/unlock it does it silently instead of beeping! then few days later starts beeping again!!! tried silently arming/disarming to see if would start beeping again but no luck ! any ideas!????? i know the 300 is quite old now but everything else works fine!!!

Probably the battery in the siren on its way out.

hmm
 

hmm is this easy to replace or does a professional have to do it? dint realise it had one! do you know whta type of battery? cheers

Take it to the dealer and get a new siren fitted. That will cure your problems. You can replace the battery but it's more hassle than it's worth.