MK161 problem

Hi!

I have a problem MK161:

power on: 1 flash OK
press remote button: led1 & led2 flash + sound from relay: OK

BUT after nothing happens at SK2, SK3 …

press remote button second: led2 off + sound from relay: OK

Seems to be everything OK, but the engine or led or … on SK2 or SK3 does not work…

Any idea why?

Thx
Remacs
ps: MK162 works fine.

Please note that the relay does not put out a voltage, it is simply a contact that opens or closes…