All controls work but oven won't heat. Replaced the relay control board - did not fix the problem. Any ideas on what to try next? Many thanks, Paul
With the display working and a new relay board already installed, you will want to check the power to the unit to make sure that there is 240 vac at the power supply. If there is not 240 vac then you will need to correct power supply issue. If there is 240 vac then you will want to start testing power and checking the wires between the power supply and the relay board.
My Thermador upper oven does not hold the correct temperature. The display will read 350° but the oven is only at 250° and now when I press for the lower oven on the display, that switch is dead I cannot select the lower oven on the display to turn it on. The lower oven was maintaining the correct temperature before the oven selector pad stopped allowing the lower oven selection? I tried turning the oven off at the breaker to try to reset the computer but it did not help.
Answer Hello Jackie,
This sounds like you have lost one leg of you 240Vac power supply. This will be either at the breaker, in the junction box where the unit is hardwired to the home wiring, or on the control board. Since you didn't specify which of the two model number you listed is the model of your unit, we cannot list an accurate part number. The model number you should list is on the units' I.D. tag. The issue with the lower oven sounds like the touch panel may be faulty also.
No sign of live in my oven everything dead ...no turn on..no display..no lights.
Answer Hello Mair. Test and see if there is power coming to the control board power/relay 00486909. If so, and nothing is working, you will need to order and replace the board in the unit. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html
Please help! I just purchased a mother board and it's not working either. It still doesn't heat up. Any suggestions?
Answer Hello Donna,
Since I have no model number to look up a diagram with, I'll just go from memory. I don't believe there is a high temperature thermostat or a thermal cut-out on these. What you need to do first is go to the breaker box and turn the breaker off then back on, in case one side of the breaker is tripped. If this doesn't do it, you can check the junction box for burned wire nuts or open the control board and test for 240Vac. There should be 240Vac to the relay board that is inside the unit. If there is, the relay board is the component requiring replacement. If there isn't, you need to send me the model number so I can research and pull a diagram to help you troubleshoot.