We have no information on these model, but some European types have a cap on top of the knob, (with the selector pattern on it) that comes off and the knob lock is under that. Worth checking that first. The caps normally are a push fit that may require a very small screw driver to pry off, just go easy just in case that is not the answer to your problem.
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Sunday, September 17th, 2017 AT 3:52 AM