What does this function symbol on my Cylinda convection oven mean?

Question

On the right hand knob, there are eight options including 0 (off):

#2 has always been puzzling me and I've assumed the rest mean something like the list below. Please tell me if I'm wrong about these too as I remember hearing some ovens have a "back element" for use with the fan.

1. Light only
2. Fan with ???
3. Fan with only the exposed grill/broil element. (AKA "Pizza mode")
4. Fan with only the bottom element.
5. Fan with top and bottom elements without the exposed grill/broil element? (I'm not actually sure about this one. I guess this could mean something like "back element only", if there is a back element in this)
6. Only the exposed grill/broil element.
7. Top and bottom elements without the exposed grill/broil element.

My best guess for #2 has been that it's similar to the the S (super?) function on some ovens (all heating elements including the broiler at the same time, for rapid preheating of the oven itself) but I'm not sure as I don't know where the oven's user manual is and can't find a model name or number in order to find it online. (No Cylinda oven manual I've found online feature symbol #2 or anything similar to it)

In my experience, option #5 heats the oven up faster than #7 so I have used #5 for preheating, but I haven't actually tested whether this is actually true or not. It would be nice to know whether #2 is the function specifically for this use.

EDIT: I found the model number, it's A46010003. This only led me to a spare parts website, but that site had the name CYLINDA IB 30 beside the number. With this name, I was able to find a Swedish-only user manual (pdf) with the exact symbols.
The functions according to that manual (and some quick maths) get us to:

Symbol	Name	kW	Top	Grill	Bottom	Fan	Back
#7	över/undervärme	2.1	[series-	-series]	ON
#6	grill	2.1		ON
#5	varmluft	2.35				ON	ON
#4	pizza	3.35			ON	ON	ON
#3	varmluftsgrill	2.1		ON		ON
#2	upptining/torkning	0.515	[series-	-series-	-series]	ON

With limited Swedish proficiency I gathered that #2 is for drying stuff with the door left slightly ajar, and that #5 is True Convection in its strictest sense, using just the back heating element.

Answer 1

TL;DR

The other symbols are fairly industry-standard, even though specific names will change based on where you live & who manufactured the oven.

I believe symbol #2 is similar to #4, with the distinction that #2 is designed to be used when cooking multiple things on multiple racks of the oven, where #4 is designed to bake a single item in the center of your oven.

Longer version

I thought this was interesting, so I did some flipping through some manuals I found online (mostly this Cylinda and this miele). I still didn't see anything that looks exactly like #2 in your question, but I have some guesses.

I think those seven settings equate to:

1. Oven Light
2. Forced Air
3. Convection/Fan Broil/Grill
4. "Intensive"
5. Convection/Fan Bake
6. Broil/Grill
7. Conventional Oven

Some of these are brand-specific mode names, so digging a little deeper into the manuals:

• Difference between "Forced Air" vs "Convection Bake" (Cylinda manual, Page 38)

  • Forced Air - For cooking different foods that require the same cooking temperature on several shelves (maximum three) at the same time. This function can be used to cook different foods without odours being transferred from one food to another.
  • Convection Bake - For cooking meat or baking cakes with liquid centre on a single shelf.

• Intensive Mode - This mode gently circulates heated air from the lower heating element using the fan to create a brick oven environment. Ideal for baking pizza, focaccia, pies and tarts that require a crisp base and moist toppings. (miele manual, Page 56)