My iron Olison pro is broken the board is completed finish. I went to a repair center and they told my that they cannot repair the iron they don’t have the part so now what can I do?

Good evening Melinda!

You can look here for replacement parts
Rowenta DG5030U0 B80 Pro Master Iron Parts , (amongst others), and a closer look at the 'Housing, front complete'
Housing Front Complete shows it includes an on/off switch.

It's not a 100% match, but this video showing dis-assembly / troubleshooting another Rowenta iron will probably get you to where you need to to replace the part (and might allow you to see if it's just a disconnected/broken wire and save the $17 for the part!)

Hope this helps, and good luck!
D

Yes the iron needs to be cleaned. They do have a descaler to clean. the Steam valve with a electronic switch is broken, that is what opens and lets the steam out of the iron when you press the button.
Google Rowenta repair Centers.

More than likely your steam valve is broken or stuck. I had one of these and they are worth having repaired. Google Rowenta Repair Center.

I've looked up parts for this iron. Sorry to say the steam button is not listed. The button may be able to be repaired at a small apliance repair center, but I do not know what the cost would.

test the 1) fuse heat and replace it
2) test the board if there are voltage , if there are the board can be faulty or repair.
3) see your instruc. manual go to the section troubleshooting and see what is wrong.
God bless you

given the potential danger, and relative low expense, would you just consider trashing this and buying a new one? I don't intend to sound short or sarcastic....it's just with the burning smell I would prefer you either return it for refund, call the manufacturer or trash it for a different iron.
Looking at epinions.com there is a comperable iron for around $40-$50 with 24 reviews and 3.5 stars out of 5.
http://www.epinions.com/prices/pr-Black_Decker_D2030_Iron

this iron has had it . it has rusted throuh the element and the rust s iron oxide . .. not repairable .. // replace it . as it will cost less .. mm

The electronic shutoff light blinks but won't stay on, so the iron won't get hot. Can this be repaired? Can I disable it?

I purchased a silicone heat protector for a pot handle and sewed it together with dental floss around the iron handle

It appears that your rocker switch is broken, I am attempting to find a source for the switch and the screw driver that removes the screws holding the unit together