Very weired situation:

I have KS230 setup seems no problem:

Main and satellite switch both work:

- On/off no problem on both switches

- can control dimming no problem on both switches

However, as soon as I turn it on and set dimming to any level:

either on main or satellite switch (doesn't really matter)

after 1-2 sec, it will reduce dimming, for ever 1 sec until it hits the minimum. 

If I just set it back to max (or brighter), it will auto dim again, every sec, till hitting minimum brightness

So brightness never stay.

What would be the issue? Wires are connected properly I believe.... 

Any comments are welcome.