domestic alarm - newbie advice?

[gavinpipe]

hi guys n gals,

I have a problem with my house alarm.
Is there anyone that could spare me a few minutes, and their wealth of knowledge?

i have photograph to help me explain - alarm going off when power is either out or turned off at the CU?

thanks in advance

Gavin

 

[ruston]

Certainly looks like it's goosed. Probably cheaper to have the panel replaced than have it repaired. A replacement panel will be from about £50 upwards plus fitting, unless you can do it yourself.


Delayed action post , 3 keeps dropping out.

 

[telectrix]

if you are any use at soldering, it's an easy job to replace. it's probably not burnt out though., just been overheated.

 

[RWJ]

if you are any use at soldering, it's an easy job to replace. it's probably not burnt out though., just been overheated.

But why's it overheating... probably a separate underlying problem??

 

[gavinpipe]

would this effect the alarm going off when the power is out?
does anyone know what it controls?

cheers

gav

 

[ruston]

If you do the checks that Tel advises it will probably show that the battery is'nt charging , the resistor could be part of the charging system an has failed or been damaged. The alarm will go off if mains power is removed and battery is depleted.

If the alarm is working properly other than that it is almost certain the charging system or the battery.

 

[telectrix]

that resistor may well be part of the charging circuit and as such has been damaged by a battery drawing excessive current.

 

[gavinpipe]

can i check if this is faulty?

 

[ruston]

Not if you are not sure how to do the tests Tel described .

 

[telectrix]

you could try your meter on ohms across the resistor. it will not give an accurate reading, esp. with a digital meter, but if it reads under 10 ohms, that's an indication that it's OK. only way to test properly is to dis. 1 end then measure it. note. i am only guessing the value as it's not possible to read due to the state of it. this should be done with the panel isolated from the supply, of course.

 

[gavinpipe]

ok i have a number of things to try, ill be back with an update asap

once again, many thanks for everyone's help.