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Carbon Monoxide sensors are only good for 5-6 years. There are usually dates marked on the device that tells you when it needs to be replaces.

If the installer lockout is "enabled" defaulting the panel will not work. That is DSC's way of preventing other companies taking over the control panel.

Here is a link that explains what you will need.

DSC

Here is a link for DSC that explains what to use.

DSC

I assume ALL your zones are wireless? If so go into fields 101, 102, 103, 104, 105, 108 and make sure number 8 is turned on. That is what actually turns on the wireless for the zones.
Any time you...

The DSC controls have built in dialers. There are sections in programming (301, 302 & 303) to enter central Station receiver numbers. You will need to contact an alarm company to get you set up for...

Could you give us the make and Part number of the device? There are tricks to changing batteries in wireless smoke detectors.

Hello,
Call me crazy but have you checked your circuit breakers or fuses to your house to make sure the outlet is live? If not, just plug in a lamp or Radio to the outlet the Alarm transformer is...