Zones not working on 12 year old HKC panel

bbability

Friend of mine changed his windows before Christmas. He changed the sensors from brown to white to match new Windows. Two zones are not working and there is only one sensor on each. The sensors are HKC and are an exact match for the ones he replaced. I switched over the tamper wire (as this alarm has a tamper for each zone) but that didn't work. Installer can't remember engineer code. Is it time to upgrade panel? Is that what's causing them to open... Age related?

kub

Chances are they might be wired incorrectly, not casting any aspirations mind.;)

Can you throw up a picture of the wiring at each please or alternatively describe how they were wired.

KoolKid

Also if they are HKC sensors check the arrow is pointing up.
The engineer can't remember the engineer code?? Why doesn't he just reset it?

kub

KoolKid wrote: »

Also if they are HKC sensors check the arrow is pointing up.
The engineer can't remember the engineer code?? Why doesn't he just reset it?

Arrows of course.....:D

KoolKid

Very fussy those sensors.;)

kub

KoolKid wrote: »

Very fussy those sensors.;)

A lot to be said for the GS613's....a whole lot actually

bbability

Its a straight 4 core from window to panel. I never checked the model number. To be honest I wasn't pushed on opening the panel without an engineer code. I'd say at a guess its a 8/12 model.
The sensors look like they were installed the same way as the old ones as in mounted in the same direction etc. Will get back to take a look at them tomorrow evening. He's talking about upgrading the panel now but for the time being it would be nice to have his window working properly on the ground floor of his property. BTW I'll be recommending a registered alarm installer for the job.

KoolKid

GS613s would be my first choice also.

Check all the arrows on the sensor barrels. After that its a process of elimination to find which one is keeping the zone open.

altor

bbability wrote: »

Its a straight 4 core from window to panel. I never checked the model number. To be honest I wasn't pushed on opening the panel without an engineer code. I'd say at a guess its a 8/12 model.
The sensors look like they were installed the same way as the old ones as in mounted in the same direction etc. Will get back to take a look at them tomorrow evening. He's talking about upgrading the panel now but for the time being it would be nice to have his window working properly on the ground floor of his property. BTW I'll be recommending a registered alarm installer for the job.

If it is a straight cable from panel to window I would disconnect this from the sensor first. If you then try set the alarm and it sets its an issue with the cable.
If it shows open then you know its the wiring at the sensor thats the issue.
You should not need the engineer code to replace a wired sensor.

DublinDilbert

Are you sure they are the same sensors? Maybe the old ones the the reed swich and the new ones don't??

You need to disconnect the zone at the panel and measure the loop resistance.

Are the eol resistors still there?

If it's one sensor on each zone should be very straight forward to figure out.

bbability

Folks

just an update...

Its sorted. Arrows pointing in wrong direction.

Thanks

KoolKid

Glad you got it sorted.
Those sensors catch everyone out at some stage.

altor

bbability wrote: »

Folks

just an update...

Its sorted. Arrows pointing in wrong direction.

Thanks

Always the most common situation when people replace these sensors themselves