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Thermador Burners Won't Light

I have a Thermador PCG484EW Gas cook top with two out of four burners that won't light. The 6 Point Gas Re-Igniter module has good voltage going into it from the simmer control so I assumed that the Re-Igniter module was bad and replaced it. The sysmtoms remain the same. I can get any one burner to work by unplugging the others from the Re-Igniter but when they are all plugged in it seams like there is just not enough power to ignite them. Is it normal for several burners to spark when I try to light one? This test also proves that the gas valve is good. Is it possible that I bought a bad Re-Igniter with the exact same sysmtoms or can I be missing something else? My service Tech worked on the thing for a year before I fired him and got involved myself. Can you tell me what Gas Re-Igniter is supposed to be in it. I think he replaced it once himself. Perhaps he bought the wrong one and I replaced it with another one like he bought? The one he put in and the one I put in is a Tytronics Model RI326.
Help!!
Mike
mtschieber@yahoo.com

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  • mtschieber Jun 29, 2008

    The controller/potentiometers did not do it. I hope I can return it because it was $160.

    I'm convinced that it was the spark module all along and the new one I replaced it with has the same problem as the old one. The spark module has the right input. 120v on "A" and 120v on the input of the burner that I turn on. That told me that it probably wasn't the controller. The only way I know to find out for sure is return spark module and buy yet another one. What are the odds that the one I bought has the same problem as the old one?

    Unless there's a bad batch coming from Bosch????

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Your issue is the potentiometers kit which includes the simmer controller; Bosch redesigned it a couple of years ago due to the serveral issues, the re-lite spark module is RARELY the issue. and yes it is normal on all cooktops for all the burner to spark until you have igniton because the electrodes are wired in series. you may also need a prof. electrician check you pwr source because due to sudden drops in voltage or amperage could cause continuous issues with your liting sys

Posted on Jun 20, 2008

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micromaster
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SOURCE: I have a Thermador PCG484EW

you have to clean your unit.

Posted on Jun 20, 2008

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