Replacing a 2 gang dimmer switch

[StephenBrown]

I have replaced a 2 gang dimmer switch for 2 sets of lights with a new switch, but the internals for the new switch are different. I have wired it up and both sets of lights work and dim OK, but after a while the switch heats up and one set of lights cuts out. After a while it cools and the lights come on again. I have connected Yellow to L1 on the first gang, and Blue to L1 on the second gang, Red to C on the second gang, and connected C on both gangs together with a short piece of cable from a 3 core standard flex . Where have I gone wrong? Any assistance appreciated.

 

[breezer]

the flex part is wrong, but that is not your problem.

your dimmer switch is underrated

 

[StephenBrown]

Thanks for the help. Does underrated mean that the electrical load is too much for it, in which case what should I look for in a new switch?
Also, if I need to cross connect the 2 gangs together on a new switch what sort of cable should I use, or is there a better way of doing it?

 

[breezer]

re the flex.

its probably not 1mm (too small) so use a piece of twin and earth that same as your switches do.

re switch:

yes the load is too big for the switch, you need a suitably rated switch, but that depends on :
lamp load
type of lamps

 

[StephenBrown]

Thanks, I'll check what I need and get a switch that will take the higher load.