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Alarm detector sensor on landing flashing?

We have a Securitech 800L+ and the upstairs sensor is always pulsing even when there is no one in its way, we have done the walkthrough test and that confrimed that something was wrong with it, any ideas of what it could be?
Regards

Lucy Dell
March 2011
and you know what assume does,makes ass u me :-)

gts
April 2011
if you to shy to go by yourself,mabe nick hold your hand,!!!!

gts
April 2011
acorn seems to have lost his sense of humour,never mind petal,marks and sparks are having a sale,if you hurry up you may get a bargain,:-)

gts
April 2011
Hey Acorn, C&K Elephant Catchers, i installed one at Christmas in a Warehouse, you can imagine joe public reading this, and thinking why on earth would you want to try and catch an Elephant in a Warehouse.
Brilliant detectors, incredibly realiable,

Nick
March 2011
keep guessing acorn,your bound to get it right,:-)

gts
March 2011
nope,only 37 years,

gts
March 2011
Haven't been in this trade very long, have you.

acorn
March 2011
if if if guys,lots o guessing here:-)

gts
March 2011
Ah, don't forget the old 'Elephant Catchers'.

acorn
March 2011
Acorn is right, if you have a Grade 3 detector by maybe Risco, the anti-mask will kick in, and your detector will flash and be open circuit. Your wondering why arnt you Lucy, Trust me it is clever technology that is more of a pain than a help, it has its purpose in the right place.
Dual Tec's do a similiar thing.
Nick 07842 480037

Nick
March 2011
silly me,i thought they ment by pulsing that the led was flashing without being trig,i.e.faulty.but guess me wrong

gts
March 2011
What are you on about?

If it's what I have suggested, it does not need replacing, just resetting.

acorn
March 2011
to put it simply,replace it,

gts
March 2011
He means the control panel, nothing else.

But, 'if it ain't broke, don't fix it'

acorn
March 2011
Oh and to top it off just got an email from Honeywell.
Your alarm is now discontinued as of today :P

Doesnt help you but there you go.

Alarm
March 2011
Without knowing what type of detector you have this is a little difficult.

I'm going to assume you have a Dual Detector of some sort, usually a PIR & Microwave in one unit.

If you have been Spring cleaning or similar perhaps you have inadvertently 'masked' the microwave side.

That means that the microwave took your close up cleaning as an attempt to 'mask', cover/stop the detector working correctly, as a result it 'switches off' the microwave side of the detector leaving it working only on the PIR side.

If what I have said rings true, the only way to reset the detector is to remove the power to that detector for 30secs or so to allow it to reset back to its normal condition.

How you need to go about that is another story.

Please post HERE again to let us know the result or to ask for additional help.

Good luck.

acorn
March 2011
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