Hello,
I have a non-working IR lamp Medisana IR 850.
Initially, when I plug the item into mains I had to press the button once to start it. The function is pretty simple - every button press add 5 min to timer (probably the unknown IC I am looking for) up to 15mins. The main problem was that the relay was not closing for some reason and the lamp did not glow.
I found the problem which was a blown zener dionde, but unfortunately while measuring on live my probe slipped and shorted the black capacitor next to the zener diode with mains and it blew up...

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