Alarm sounds when deactivated

[yellowvanman]

Don't normally deal with alarms but a customer has asked me for advice and consequently I come here!

Old system (circ 1980s) occasionally alarm goes off during the day when its been de-activated, type in their code and it stops and everything OK until the next time. Happening more regularly.

New battery required?

 

[tazz]

The activation is the tamper circuit, If its an old system then the tamper circuit will be global (one circuit for all tampers)
Try link out 24hr tamper and see if it cures the problem....if it doesnt, then look at the bell box tamper circuit.

 

[buzzlightyear]

what system is it .

 

[Jdsparky]

If in doubt, link it out

 

[Volt]

Hi,
Mine sounds when landing light is turned on and then stops when it is turned off. All other room lights do not affect the alarm. Baffled why I get this affect with only one of the upstaris lights as it appears to rule out any voltage drop that might be sensed by the alarm unit. System is an old wired installation.

Grateful for any ideas please.

 

[telectrix]

Hi,
Mine sounds when landing light is turned on and then stops when it is turned off. All other room lights do not affect the alarm. Baffled why I get this affect with only one of the upstaris lights as it appears to rule out any voltage drop that might be sensed by the alarm unit. System is an old wired installation.

Grateful for any ideas please.

arcing in the light switch or fitting could cause this. check all connections relative to the landing light and if necessary, replace the switches ( i assume it's 2 way ).