Problem with Ademco 5827BD

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Old 10-15-17, 05:03 AM
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Problem with Ademco 5827BD

When an attempt is made to turn the unit on by pushing the * key, both the red and yellow leds momentarily blink one time simultaneously. There appears to be no attempt to communicate with 5881 receiver normally shown by a blinking yellow led.

The basic system is a Vista 20 with 4219 Zone Expander, two key pads one of which is a 6160 and the other 6150. All zones are hardwired. The whole system works as expected except as discussed above. There are no error codes displayed.

There are two 5827BDs in use. One works as it is supposed to and the other as discussed above. Battery is new and tested good.
 
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Old 10-15-17, 09:50 AM
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Has this wireless keypad worked in the past? If so, you may just need to delete it and re-enroll it. It's not beyond possibility that the device has simply failed.
 
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Old 10-15-17, 12:51 PM
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Yes has worked in the past. Is there a special meaning when the red and yellow leds momentarily blink one time simultaneously without any sound being produced?
 
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Old 10-15-17, 01:12 PM
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The only thing that matches that is there being an alarm memory being held by the device: http://library.ademconet.com/MWT/fs2/0/6329.pdf

As you have described the situation, though, that doesn't seem to match up with their truth table, either.
 
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