Question about Thermador PRG304US Gas Kitchen Range

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Thermador igniters spontaneously spark w/ burners off

I have a Thermador range. With all the burners off, the igniters will spontaneously start sparking. This continues until we turn the left rear burner on for a minute. Sparking stops, but then starts up again some random minutes later. Got any ideas on what's up?

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  • CharlieNH Nov 27, 2010

    Did you ever solve this problem? I have the same issue.

  • rksull Nov 27, 2010

    Nope. Still happens randomly. Nuisance, but hasn't driven me to get it repaired or replaced.

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6 Suggested Answers

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Posted on Jan 02, 2017

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SOURCE: pilot on ultra-low star burner keeps sparking after the gas is lit. never stops.

jackupster What is the problem? What is your question? What is the complete model number of the product? Gendos

Posted on Mar 23, 2007

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catriver
  • 878 Answers

SOURCE: spark igniters on the burners fire continuously

Guy, I would suspect one of the valve switches is shorting. Probably got wet and is grounding. Before you go after the spark module check these first. Each control valve has a switch. I usually find these to be the culprit with constant spark. Catriver.

Posted on Jul 16, 2007

  • 1 Answer

SOURCE: LP conversion for Thermador 4 burner range top

I have a Thermadore 6 burner gas cooktop PCG366E purchased January 08. I purchased the LP conversion kit, they only make one kit for all models. The instructions included with the kit were written for an older model and have not been updated by Thermador. The gas regulator is located next to gas inlet pipe. You have to get at it from above. Remove the 2 star burners over that side of the cooktop. You will need a 20mm socket to remove the nut at the center of the star burner. Lift it off and disconnect the wire to the ignitor ( You need to push on the spring lock in order to seperate the the connector terminal). Remove the stainless steel pan and then remove the metal pan underneath ( you will need a Torxs bit for this screw or vise grips). You should now see the regulator. At the top of the regulator is a cap with the letters NG visible. Twist this a 1/4 turn ccw, lift up and turn over to expose the letters LP reinsert. The regulator is now ready. You will need to replace the orifice tips at each burner. Use a 7mm socket with an extension. Put a piece of tape in the socket to hold the orifice in place while you insert it. You also need to adjust the valves. You must pull off the knobs and and remove the trim bezel. If you look through the screw hole on the right you will see a screw head (bypass screw). Insert long skinny flat blade screwdriver through the hole and turn the screw CW all the way (about 1/4 to 1/2 turn in my case). My cooktop had two burners with a low simmer feature, This devise is located in front of the bypass screw. It has a hole in it but does not align well with the head of the bypass screw and makes it difficult to turn the scew. Thats it, I hope this info has been helpful. I have not yet connected the propane therefore have not tested the unit but it should work.

Posted on Feb 27, 2008

freetek
  • 5568 Answers

SOURCE: Electric spark for gas range burner is non stop

Turning any knob starts the spark via a switch behind each which should disengage when the (any) knob is turn further.
One of your switches is stuck.

I think you should be able to remove the range-top for access and find the offending switch.
It is probably gummy from a spill and is no longer in solid contact with the cam that operates it.

A solvent/lubricant such as WD-40 sprayed on the plunger of the switch once you can see it and operating the knob back and forth should free it up.

It might be wise to turn off the gas supply while tinkering with the range - blow your house away and the range won't matter. :-(

Posted on Jun 19, 2008

  • 338 Answers

SOURCE: old Thermador cooktop continues to spark even after turned off

sounds like you have a bad switch. maybe on the large burner.. some of those switches can be replaced without the whole harness.

Posted on Dec 22, 2008

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