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Jim Jim is offline
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Default Carbon monoxide alarm error

On Fri, 19 Sep 2008 19:43:18 -0400, Claude Hopper wrote:

Jim wrote:
Came home today to discover that my First Alert model FCD4 was acting
strangely. Single chirp every minute or so. Looking closely at the
display was the "err" message.

I'm guessing it is one of two factors. #1 being they are cheaply made
and simply don't last more than a couple years. #2 being the sensor is
dirty causing the error message. If so how does one clean it? Would
compressed do?


That's usually a low battery condition.


Popped in fresh battery, same problem. Unit has a low batt message if
the battery runs low. Unit itself is AC powered, battery backup.