Where can i find knobs for this oven. cant find any where. is there a replacement kit?

Based on your description, it sounds like the problem may be with the function knob itself. It's possible that the knob is not making a proper connection with the oven's control system when turned to certain functions, which could explain why the oven doesn't heat up and the light doesn't turn on. Additionally, the fact that the oven sometimes stops heating and the light turns off on its own, and then starts again when you wiggle the knob, further supports this hypothesis.
Replacing the function knob is a relatively easy and inexpensive first step to take in attempting to fix the problem. However, it's also possible that there may be a more complicated issue with the oven's control system or wiring, so if replacing the knob doesn't solve the problem, you may need to consult with a qualified technician to diagnose and fix the issue.

Sometimes these controls are custom and need to obtain an exact fit OWM replacment (rather than a generic part.)

If your in the UK, try contacting

B Grade Domestics,
1, Armscroft Road, Barnwood, 
Gloucester. GL2 0SQ,

UKSupport: 01452341595E
mail: [email protected]

It depends a lot on what brand it is. But sears has a universal knob kit .
http://www.sears.com/search=universal%20oven%20knob%20kit

these are NLA. No Longer Available.
Try to get something that is acceptable to you and fits by researching "oven Knobs" at repair clinic dot com and selecting by looks and size.

most oven brands say it cant be replace in the field , never had to replace it give me more info and i will look for one for you , make, model serial number , thanks

The knob is probably cracked, if you can pull it off, then you can try to see if you can turn the oven off with a pair of grips or pliers, if you can, then you just need to replace the knob, if not then you will have have to replace the switch.

If you go any hardware store (Lowe's, Home Depot) they have universal knob replacement kits. Take your old knob with you and ask for help from someone who looks like they know something (the old guy). Its so much cheaper this way, exact replacement knobs can run $20 or more each. Good luck!!

First set the clock if you cant do that just press buttons till the numbers stop flashing the turn the knob with pictures to one that looks like a fan in a box that should be fan forced option the select the tempreture with the other knob

hope it helps

Hi.
For Belling spare parts go to.

www.4belling.co.uk/spares.
You wiil find all you heed here.

there is a dispay kit you can order from bosch to fix this problem. it will come with a new display board and power control which is located behind control panel as well