my cooktop only works with one burner on at a time. All burners work independently but not if you turn another burner on at the same time. Any idea why?
Answer Chris, It could be a loose connection in the power supply to the cooktop. If they all work, one at a time, we would'nt expect an issue in the relay board or controls. We'd epect to see a "major' drop, or elimination of the voltage to the cooktop, when more thwn one burner is in use.
I forgot to turn off the power when I was working on the oven. The door switch shorted on the metal frame. After finishing my work, I turned the power back on, but I didn't have any power to the oven. The circuit breaker was operating properly. Did I damage the relay or electronic control? If so, how do I test them to determine which one is damaged?
Thanks for your assistance.
Answer Hi Paul. The first thing to do is to repair the shorted connection at the door switch. You may have gotten lucky and just stopped the power there. You need to start at the 240 vac and make sure that you have the proper 240 vac and the 120 vac from each side to the middle neutral wire. The black feed wire is the L1 and the red wire is the L2. THE MIDDLE WHITE WIRE IS THE NEUTRAL. Test both L1 and L2 to neutral and see if you have 2 - 120vac power along withthe 240 vac from the red to blk. If you lost one side, then totally shut off ht circuit breaker and reset it because you may have half of the breaker bad. This may be the side that the clock runs off. Then you need to use the wiring diagram supplied with the unit controls to test each point to find where you lost it. If you have 240 at the red and black on the clock and then no output then you need to replace the clock part # 00489265. Once you have the clock working then you do not have output to the elements then you need the relay board part # 00489264. Thank You.
Upper oven is not heating over 275f temperature. Do I need Relay Board?
Answer Hello Bosch. You will need to test the elements 00435178 00438527 and make sure they are both good. If so, test and see where you loosing the power at, it could be the relay board 00489264 or the thermometer 421010. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. Hope this helps. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html