the lid on the p,i,r might not be on secure enough ,so tamper spring is not pressed in enough,you could open up the p,i,r, and take the two wires in the terminals marked 24 hour ,or tamper and twist them together this will link out the tamper ,you should be able to reset alarm ,.hope this helps ,if not come back on to site
brad
September 2008
howtomendit.com for free repair help, information and advice.
