Problem k8028

Kits Timers and Clocks
1

Hi,

I have a problem with my k8028. I use it as slow on-off.
Accidently there hapened a short-circuit over SK2. I replaced the fuse but the kit doesnt work anymore.
After starting up, the kit does the selftest and LD4 flashes up(green). But the lamp (over SK2) lights immediatly up at full power.
This is supose to hapen after I make contact over SK3.

When I make contact over SK3, the kit goes into error and LD1 flashes 6 times.
Wich components may be damaged?

Wouter

2

I’m sure, the triac TIC225M (TR1) is damaged, replace the triac with the same type.

3

Hi,
replaced the triac. Kit works fine again.

Thanks!!

Wouter