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[Nate2]

I had 2 LM15A (socket rocket lamp modules) controlled by the same power switch ; one on the driveway and one on the front door.
Unit code 6 and 7, respectively.
Both have slightly different on and off times.
Main power switch turned off occasionally, to override the timers, to prevent "wasting electricity".

I had AHP initially do the "Repeat" thing (in case my new CM15A signals were not getting through).

The AHP "Repeat" function for Unit code 7 (for the 2nd LM15A) appears to have re-programmed the first LM15A to unit code 7 as well!
Did the 7-ON, 7-ON, 7-ON AHP "repeat" sequence reprogram the Unit code 6 LM15A?
Now both lamps turn on and off at the same time, and respond to Unit Code 7 only.

[Boiler]

Hello Nate,

By cycling power off then back on to the LM15a's, you may have inadvertently put them in programming mode.  If so, then both units would have been programmed to the unit code 7 when you sent out the sequence.

Here's the manual for the LM15a: LM15a Manual

I had similar problems using the LM15a's in my table lamps.  My better half could not break herself of the habit of turning the lamps off using the lamp switch.  This would cause the units to reset when turned back on.  They would then accept the next repeated house/unit code that came down the line.

[Brian H]

Yes on power up. The LM15A is in the program mode. If it see any X10 commands in the thirty second program mode. It can be reprogrammed.
If by chance it see the address it is programmed to presently. It will just follow the command. Like if I had one on A5 and powered it up. An A5 AOn would just turn it on. A different address would most likely reprogram it.
A motion sensor going off during the programing cycle can also change thing that you didn't expect. 

[dave w]

I don't think the LM15A reprograms unless the command is repeated within the 30 second window after power in enabled. I possible fix would be to delay the second "ON" command for 40 seconds.

[Brian H]

Yes I missed that. Program I believe needs three of the same commands in the thirty seconds.

[Boiler]

I don't think the LM15A reprograms unless the command is repeated within the 30 second window after power in enabled. I possible fix would be to delay the second "ON" command for 40 seconds.

I didn't know that.  Makes me wonder how the better half was able to consistently reprogram our LM15a. 

Awwww Maaaan, I see another apology in my future.  Anyone know how much "crow" a person has to eat before it starts to taste good?

[dave w]

Anyone know how much "crow" a person has to eat before it starts to taste good?

uh, yeah...I do.

[HA Dave]

Anyone know how much "crow" a person has to eat before it starts to taste good?

uh, yeah...I do.

Hummmmmm crow.