Problem with k8028

Hi,

I have a Problem with the K8028 Kit.
When I switch the Power on, the Load is directly switched on, too.
The Self-Test is OK with no errors. After the Slef-Test the LD3 is flashing one time.
And nothing happens when i push the SW1 switch.
The connectet Light on the Load is lighting till i disconnect the Power.
When the Input is closed, the Self-Test recognize this and the LD1 is flashing two times.
What could be the problem with this brand new Kit?

Thanks

Tom

Check the triac TIC225M. Check his solderjoint or he’s defective. Only replace him with the same type.