Hi, have old Challenger 5 home alarm system in house, worked a treat last 20 years, power cut the other day and it's went haywire?! Code no longer works and it just sets itself off... Trying to get user manual if at all possible pls?? 

Edited August 19, 20178 yr by john.lightbody

I assume it needs a service and a new battery, that's if no ones looked at it in 20 years.

Not been serviced, never had too, worked splendidly for all these years. Has had just 2 battery changes and the current one is dead, but since power cut last week once power came on it set off, code not working to turn off.... 

Edited August 19, 20178 yr by john.lightbody

Duff battery due to lack of routine maintenance etc has probably knackered the charging circuit and the pcb, it's had a good innings though!-more luck than anything else I would hazard a guess.

look gardtec ish ?

 

power it down,  restart it with no battery it if doesn't start with all the tampers close & fuses intact its knacked

I thought that g3xx looking 

59 minutes ago, john.lightbody said:

Not been serviced, never had too, worked splendidly for all these years. 

Do you service your car?

22 minutes ago, norman said:

Do you service your car?

no, no point it worked fine for years till it broke, I did put new batteries in the remote tho

but I doubt anything is trouble free at that age, security systems are expected to work for ever with no tlc. What else has the same?

Sundials

true, but you dont expect one to protect you and yours. Its a recurring thing, its been great for years but I didn't know id need it etc