Bosch "Touch & Turn" Range Stove Oven Model HDS-255/HDS-25 No Heat Diagnosis and "Repair"

The venerable Bosch stand-alone range we bought in 2004 stopped heating. In this video, we diagnose and "fix" it.
Service manual for the range is here: youtube.wardco.com/bosch_hds25...
Similar models for the robots:
HDS7052U/700, HD2515 U/01 HD2516 U/01 HDS252 U/01 HDS255 C/01 HDS255 U/01 HDS256 C/01 HDS256 U/01 HDS355 U/01 HE2415 U/01 HE2416 U/01 HE2515 U/01 HE2516 U/01 HES232 U/01 HES232 UC/01 HES235 U/01 HES235 UC/01 HES236 U/01 HES236 UC/01 HES242 U/01 HES242 UC/01 HES245 U/01 HES245 UC/01 HES246 U/01 HES246 UC/01 HES247 U/01 HES247 UC/01 HES252 U/01 HES252 UC/01 HES255 U/01 HES255 UC/01 HES256 U/01 HES256 UC/01 HES342 U/01 HES345 U/01 HES346 U/01 HES442 U/01 HES445 U/01 HES446 U/01
HDI7032U HDI7032U-03 HDI7052C HDI7052U HDI7052U-01 HDI7132U HDI7132U-03 HDI7152U HDI7152U-01 HDI7282U HDI7282U-01 HDS7022U HDS7022U-01 HDS7052U HDS7052U-01 HDS7062U HDS7062U-01 HDS7132U HDS7132U-01 HDS7152U HDS7152U-01 HDS7282U HDS7282U-01 HEI7032U HEI7032U-01 HEI7032U-02 HEI7032U-03 HEI7052U HEI7052U-01 HEI7132U HEI7132U-01 HEI7152U HEI7152U-01 HEI7282U HEI7282U-01 HES3052U HES3052U-01 HES5022U HES5022U-01 HES5042U HES5042U-01 HES5052U HES5052U-01 HES5062U HES5062U-01 HES7022U HES7022U-01 HES7052U HES7062U HES7062U-01 HES7132U HES7132U-01 HES7152U HES7152U-01 HES7252U HES7252U-01 HES7282U HES7282U-01 HGS3052UC HGS3052UC-01 HGS5022UC HGS5022UC-01 HGS5042UC HGS5042UC01 HGS5052UC HGS5052UC-01 HGS5062UC HGS5062UC-01 HGS7022UC HGS7022UC-01 HGS7052UC HGS7052UC-01 HGS7132UC HGS7132UC-01 HGS7282UC HGS7282UC/01 HGS7282UC/02 HGS7282UC/03 HGS7282UC/04 HGS7282UC/05 HGS7282UC/06 00653424 AP5263087 00499395 00499396 00499397 00499398 00675130 00700200 1936420 499395 499396 499397 499398 653424 675130 700200 AH3499045 EA3499045 PS3499045 PS8731449
Board Kit Part 00445290, Replaces 00445300, 00445292
Maybe replaces AP3861694, 1161493, 445290, 445292, 445300, AH3465423, EA3465423, PS3465423, PS8715686, 00495916, 00494423, 00445300, 00445292, 00494155, 00491564.
EGO power board electric 9000072672 79.92265.000
Genuine BOSCH Range Oven Relay Board # 00491564 5060003117

[@PracticallyFixed]

Enjoyed this video. Am a fan of your troubleshooting and your overview of schematics are always interesting. Thanks

[@junqueboi387]

I feel your frustration! There have been many times where I touched/adjusted several things at once and in the rare instances where the appliance/car/etc. started working....nothing was learned. Will it screw up next week? Maybe! I agree with you on the practice of making service information so proprietary. It wouldn't kill these companies to make this stuff accessible to "people like us" since most consumers would likely just replace the product anyway. Thanks for posting another interesting video.

[@mackfisher4487]

Glad you weathered the the weather.
Wade, all of your videos you show excellent troubleshooting skills. I watched your video with baited breath was that bad breath to the very end so you'll get full credit from RUclips. I hope that there will not be a follow-up video. I will not give up my simplistic gas oven because it's so simplistic that even I can fix it. So did you use your hacker skills to get that manual, I'm constantly trying to get schematics etc. with mixed results.

[@WardCo]

Yeah, there are ways to get "behind" the paywall at some of the sites that charge for information.

[@joshfriesen9401]

This is interesting, I wonder why it decided to work again? Maybe a poor connection to the terminals in the receptacle? Nice video!

[@jorgemontelongo446]

Hi there.. I have that same bosh model oven . The issue I have is the oven takes really long to heat up. Do you have any idea why ?

[@WardCo]

That sounds similar to the problem that got me started on all this -- and that I never identified since it just "started working." Grrr.
Either the heating element(s) are not coming on at all, or the thermostat is screwy and is telling the control board things are already hot. Run the self-tests shown in the video and you should be able to isolate the problem to one or the other.

[@dahut3614]

Did you get that figured out? Both the top and bottom elements should be coming-on- maybe one is burned-out or one of the relays went bad. I always turn-on the convection initially because the extra "ring" element helps the oven heats-up faster!