Pyronix Enforcer Tamper triggered by Sun / Heat

6 Aug 2018
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United Kingdom
I have a Pyronix Enforcer installed quite recently. The Technician has been back several times to adjust a screw within the siren box but when the Afternoon Sun hits the siren box the Tamper alarm starts.
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May be a faulty micro switch ask if it's a dark green microswitch if so replace it
its a black microswitch. the installer has just moved the Box location from one side to another of the house.
design looks a bit poor as the switch lever can be prevented from fully closing by the mounting shroud.
Did he adjust the back tamper ?
Have fitted hundreds of these bell boxes and only had one issue ...
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The alarm did not trigger yesterday. The sun was hot but it's now fitted to a cooler side of the house (earlier sun).
There is now a distinct gap visible behind the box as the switch is fully adjusted out.
It's just poor design, the switch is linked removing the lid, but the activation arm impinges on the switch housing if set low.
Went off again today, no installer so took it down myself.
Microswitch is intermittant, fails open occasionally.
Shorted with trimmed down car fuse between spade terminals.
Fine now.
Trimmed the fuse terminals to just fit. It's going nowhere! Lol
Oh, it's 10A. Unlikely to pop either ?

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