Gorenje Oven Door Switch

Gorenje built in single oven door switch required.
Model is B897SE
S/N 72830003
Type EVP444-421M
ART No. 20804/01

Oven trips electrics when door is opened and not every time.
Cant see a thing wrong with it, the wiring has no splits or nicks init or burns, it also mega’s ok, presume door switch is causing the fault but its not a typical microswitch.

Any help appriciated,

Thank you.

Rob.