I had an LM14A report it was on but bulb burned out. That was with an old CM11A and AH software. I believe by default it will not. It looked like AH and the CM11A sent some commends to change its response at initialization.
Once the LM14A and AM14A are sent an Extended Configure command, they will reply with an Extended Status Ack when they receive an X10 On or Off or Extended Preset command. However they do not return an Ack if the load changes, e.g., if an attached lamp is manually switched.
Like I said, I know that AH2/CM14A will do a popup window if the load changes (ie, a bulb burns out or the lamp is manually turned 'off'). I remember testing that during the beta test for the AH2/CM14A. It took X10 a few tries to get it right. However, there is no way that could happen at all unless the LM14A could return an asynchronous, unsolicited, status.
Possibly, there are different firmware versions in LM14A's?? ??
Honestly, I played very little with my AM14A since then, having never really found a practical need for it. I would have never found a practical use for the LM14A either, if not for its extended dim commands.
However, the real problem with any of this, is that there doesn't seem to be any available macro conditional in AHP, which allows one to "test" the load status. In other words, it seems that AHP just throws that info away, whenever any status is returned.