6205 flow control knob broken

[miracles38]

I recently purchased a used 6205 and when I hooked it up I found that the little white flow control knob is broken off. The flow seems to be set at the lowest or very low (way lower than my 6100 right next to it). Is there a way that I can turn the flow up? I took off the little outer cover, but was unable to get the flat white piece that is still in there to turn.

What can I do?

Thanks for your help!

 

[rvitko]

If you PM me your address I can send a new knob and you would use a small jewelers screwdriver to pop out the remaining bit of the old knob.