Dimmer VMB1DM going off unexpected

English
1

Since a week one of my 4 VMB1DM dimmers acts very strange:
When pushing a switch (triggerd by a VMB8PB, VMB4PD, or even the PCB button on the dimmer itselve) the light goes on for 2 to 5 seconds, flickering heavy, and then goes off completly. Half of the time even nothing happens.
The problem started a week ago but increased each day. Beginning of the week only 1/10 times failed, now 10/10 failed.

The load of the dimmer: 4 conventional resistive light bulbs of 60W each.
I’m using mode 3 (dimmer with memory function).
The timer is set to F.

The setup was working fine for 2.5 years now.

Any ideas?

2

Most likely, the problem is related to the dimmer hardware.
We’d recommend to return the dimmer for inspection/repair to:

Velleman Projects Tech. Dept.
Legen Heirweg 33
9890 Gavere
Belgium

3

Hello Velleman support,

I sent my faulty dimmer to the address below, as requested.
I also attached a printout of the thread below for your information.

But I still had no answer for weeks now. Any updates on this?

Thanks a lot!

Gert

4

Repair dept. treated this issue on 8/2, so item should arrive soon.
Keep us informed if this is not the case.

5

Thanks for the info. No delivery yet, but I keep you informed.