Bosch 00415498 Range Jet Holder With Jet OEM Part

First and foremost, don't believe everything you see on Youtube. In order to get to the gas solenoid that feeds the burner you MUST take the entire top off that side of the range. Remove the grates and burner tops. You will see 2x 20mm brass nut, or so it appears, that hold each burner in place on the splash/drip pan. It is not just a nut, it is a venturi that threads down into what is called the jet holder. You may get a socket on it and think you are getting it loose but, more than likely you are spinning the jet holder, which has an aluminum gas line attached to it. The brass venturi has been treated with some kind of plumbers thread dope and if your range is of any age at all, I can promise you the venturi will be seized to the jet holder. I believe this may have been done to prevent any gas vapor from coming up through the threads and leaking outside the venturi. In my humble opinion, this is total OVERKILL. And here's why: the only ways to get the burner base off to then remove the splash pan, you have to get your dremel tool out and grind off the top of the 20mm brass venturi. Don't fool yourself into thinking that because you can spin the sucker with a socket and 1/2" flex handle its coming loose. Think again. If by some act of God the venturi comes loose it should turn fairly easily however, if it turns with abnormal resistance of any kind, you are twisting the gas line into knots. Once I ground the tops of of both venturi the burner bases came right off and that exposed the jet holders which have their own nut that holds them in place. Once you get the jet holders out you can try to unscrew the remaining venturi but, more than likely you will have to replace them too. All in all, you will need two jet holders, two jet holder nuts, two venturi and, while your in there replace the two clips that hold the ignitors to the splash pan. If you have to replace the gas line make sure you call these guys and make sure you order the right one. The catalog only showed three different lines, none of which were the one we(I talked to a rep)decided was correct. I got an email confirmation of my original order and I responded that the gas line I ordered was incorrect and PLEASE look for the right one. It took me about a week to complete the repair. I wasn't about to pay the local appliance repair thief to fix it for me. Trust me, he has a reputation.

I converted a natural gas Thermador range to LP. IN order to do this the jets had to be changed over to the LP size. Since the two parts were welded I had to cut the venturi tube nut off. To do so I used a step drill bit (up to 3/4" diameter) and cut through the top of the venturi tube from the inside out. Once the tube's top was cut through the venturi and jet holder assembly was easily removed by disconnecting the gas-line. With the assembly out a new jet was installed and the unit re-installed in a matter of a few moments. Thanks for the quick shipping the repairs were done and ready for installation in short order. The price for the parts was reasonable, the shipping fees were great and the quality top-notch.

Had two different repair companies come in to repair my Thermador PRG304US Range. Both explained the the "broken" parts were no longer available making the repair impossible and thus I would have to buy a new range. Ok, but before I shell out $5K to replace the one I had, I needed to answer the questions I had. After twenty minutes of online research and the help of AppliancePros I was able to repair my own range. The techs obviously mis-diagnosed the problem, and not only that the one guy "pretended" that he attempted a repair that he never did. Repair was not overly difficult for someone with a little "handyman" skill and common sense, but was time consuming. Had to remove multiple parts for proper exposure to allow replacement of solenoid. The Venturi Tubes were frozen also adding to the difficulty and time required. DIY repair videos that greatly helped me with the repair: https://www.youtube.com/watch?v=p5O7UV_aQjw https://www.youtube.com/watch?v=g8_rUV0wFyM

The root cause of the problem was a bad potentiometer. The carbon tracks were worn out, and not providing electrical contact that energizes the gas control solenoid. In order to test the solenoid, I had to disassemble the cooktop, and the nut and "jet holder" were welded together from years of exposure to heat. Disassembling the old parts was difficult, but installing the new ones was easy. Note that the new potentiometer (AP3782975) appears to be a direct replacement for the old one (AP2825521). Thermador PRG304US

The biggest problem is taking apart the cooktop venturi/burner assembly. They were fused after 20 years of use. These have to come out to get to the electric gas solenoid which I thought was not opening to let gas to the burner. I ruined the two Ventura’s and jet holder and the two gas lines getting them out and replaced them with new from appliance parts pros. Before I destroyed the old parts I figured out that it wasn’t the solenoid that was bad but I wanted to be able to see how everything looked underneath in case I needed to get to them in the future. First I made sure that the parts I was going to destroy were in stock and they were so I used penetrating oil a 20 mm flat bottom socket and then a unit to drill the hex head off when the wrenches couldn’t loosen the venturi and started spinning the jet holder around breaking the attached gas tubing. I used 1/4” copper line from an ice maker to make new lines and put everything back together with anti-seize. The problem was the potentiometer. How I found out have I just switched the one that was working with the one that wasn’t and that was it. Appliance parts pros had all the parts in stock and shipped out to me in a few days and then it took me about a half-hour to put everything back to new condition. Works perfect for $105.00 thanks.