Wiring diagram of the switch on the convector heater

Hello! If there was a switch of 6 contacts in 2 rows (i.e. 3 + 3), then there is a 90% probability that the purpose of the contacts is similar to the fact that it has failed. This is usually a two or three position switch. The middle contacts are the "input", the extreme "output" of each position. Vertically, these are two groups of contacts, i.e. the vertical stripes are not interconnected. Vertically, on one side, the upper is connected to the middle, the lower to the middle.

If the switch had three positions (ON1-OFF-ON2), then in the middle position the middle contacts did not close with anything, in the upper middle they closed with the lower ones, in the lower middle ones they closed with the upper ones. If there were two positions, then everything is the same but without the middle position "OFF", i.e. it switched either the middle with the top or the middle with the bottom.

What numbering of contacts on the new I and deep down I can't imagine, it can be any. Either vertically 1-2-3 in the first column, and 4-5-6 in the second, or vertically 1-3-5, 2-4-6... The essence of this I described the switch - the wires coming to it to the middle contacts - going to the heating elements - on extreme contacts. I hope you remember how it was connected before - connect it as it was.

If I have not fully answered your request, please clarify your question. Successful connection, I think that everything will be as I wrote above.