[Owen Rubin]

I have this happen all the time (I have 4 of them installed), and  
often it is heat or weather related. I noted, when I opened one, there  
was a lot of moisture in it.

It is not signal related for me, but what seems to happen on every one  
of them is corrosion on the UNIT and House Code dials. Often, my unit  
will change to some random code. opening the unit and cleaning the  
dial contacts helped for a long time. They are just not sealed very  
well at all.

I also note that the contacts to the lamps also corrode and break off,  
rendering one of the lights always off. I used to think it was lamps  
burning out, and finally took it apart to see that failure as well.

My problem is worse as the person who built this house, did not put  
the walk motion lights on a switch. So I have to depend on X10. But I  
am going back to a regular light, and a Outdoor Hawkeye, and use an  
inline X10 unit to control the lamp. Tired of fixing these things.

-Owen-

On Aug 12, 2008, at 6:32 PM, nz_no_junk wrote:

> I have two X10 Outdoor Floodlight Motion Detector (PR511) which have  
> been installed for ~3 years in their current location. They have  
> worked well except for a few hiccups when I simply turned off their  
> power (switched circuit).
>
> Recently, one unit will not turn off. I have tried sending direct  
> commands with no luck. The other floodlight works as expected on its  
> own (based on motion) as well as from device commands.
>
> Of the two floodlights, the recently-defective one gets the most  
> use, since it covers the patio area where we take out our dog in the  
> evening. I opened the brain box and got a whiff of toasted  
> electronics, but not sure it's dead.
>
> Any recommendations on troubleshooting for root cause and resolution?
> Do these just "go bad'?
> Can I buy just the motion sensor/controller?
> TIA  - Nat