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[grahamk]

My X10 setup with a CM15A abd TM751 was working pretty well until I added a large UPS - at which point I started learning about filters and put filters on the large UPS and went ahead and put Filters on all the other UPS's in my house - about half a dozen of them. ;-)

Once the lines were cleaned up I am now seeing A1 ON commands which appear to be getting passed back and forth between the TM751 and the CM15A - about one a second.
Other codes (A2, A3, etc) don't get passed back and forth, but I get a constant A1ON and it appears to really affect performance of the system.

If I remove the TM751 the A1's stop. I need the TM751 because the CM15A RF range is terrible. I am monitoring the CM15A.

Anyone know how to get rid of this?

[Brian H]

Do you have an X10 Signal Repeater and if so which one?
Is the TM751 in the AHP setup that it can control by RF as it has no power line receiver in it.
Are there modules using A1 in your system?

[grahamk]

Thanks for the fast reply.

I have an XPCR - it is installed on a dedicated breaker in the fuse box - if i turn it off the problem remains.

Not familiar with setting the TM751 and RF control in AHP. Sounds like something I should look into?

I do use A1 in my system - it is a PA011 Wall outlet.

[Charles Sullivan]

Two possibilities:

1) You have an X10 remote somewhere with junk piled on top of it which is holding down the the "A1 On" key.  (Don't laugh.)

2) You have a inadvertent macro stored in the CM15A which sends an RF "A1 On" when triggered by an "A1 On" over the powerline.  (Try erasing the CM15A memory.)

[grahamk]

Two possibilities:

1) You have an X10 remote somewhere with junk piled on top of it which is holding down the the "A1 On" key.  (Don't laugh.)

I did not laugh - I went and hunted them all down. And this was absolutely what was happening. Irony is that the "a1 On" button was being held firmly down by a bottle of scotch - if it were a bit later in the day I would have had that drink that this problem was driving me to.

Thanks for the tip. Not sure why I didn't think of it - but it started happening right after I put filters in place so I put 2+2 together and got 3. Very much appreciated!!!

[Brian H]

OH no another stuck remote.
What would have been even more annoying. Is the batteries die and you go crazy trying to find a problem that disappeared.

[HA Dave]

.... You have an X10 remote somewhere with junk piled on top of it which is holding down the the "A1 On" key.  (Don't laugh.)

I did not laugh - I went and hunted them all down. And this was absolutely what was happening.

A quick and awesome call there Charles Sullivan!!!

[Noam]

You can try modding your CM15A antenna, either with the "external antenna connector" mod, or the non-invasive "tape a 19-inch length of wire alongside the CM15A's antenna" mod.
I did the second one, and I've greatly improved my RF reception.

Moving the CM15A closer to a central location can help, too.

You may be able to then remove the TM751 from your setup.

--Noam