Gas burner control stuck - Dacor Preference SGM365SS Gas Cooktop

Hi,
Here is a tip that I wrote that will help figure out why the burner spark keepson clicking...

Gas Range Repair Burners Keep on Clicking
heatman101

If you can disconnect the power to the cook-top then do so..this will give you a little peace of mind...it seems like the switch for that burner is defective(eg: stuck in on position)..the switch is an integral part of the control that turns on the gas for the burner..you may need to replace the control assembly..these are available from appliance parts stores and on-line

Hi and welcome to FixYa. I am Kelly. On your cook-top the gas igniters are cycled on and off by a ceramic and copper switch on the front of each of the gas valves. Some of them are in wired Series ...i.e any burner on will cycle all igniters on the cook top and some of them are in Parallel where individual burners are controlled by each gas burner control knob. Inside these tiny ceramic switches there is a flat thin strip of copper that as the gas valve is rotated a cam of the switch actuates pushes the copper strip against the fixed contact. Those little strips over time either break or get bent and stay against the fixed contact. Hence you have and igniter on when the burner control is off. The only fix is to find out which little ceramic switch on the front of the gas valve is stuck. You do it with an Ohm meter POWER off. They all should read open with the burner controls off. The one that reads continuity across the 2 wires is the bad switch.

Thanks for Choosing FixYa.

Kelly

Hi,
They are not that hard to replace and you can easily buy the part online...
Here is a tip about how to buy appliance parts online.

How to Buy Appliance Parts Online
http://www.fixya.com/support/r3907570-buy_appliance_parts_online

heatman101

take out the control knobs. clean the grease and food partilcles if any using hot water and dish washing liquid .if the washer under the knob is stuck, put it properly and put the control knobs back into it carefully

when you turn the knob or push a switch is going to the on posicion so that means that the switch is stuck in one of the knobs , you just have to see witch one is stuck

Lowly what the potentior does is turn on the burner control system. When you turn on a normal burner you are opening a gas valve and closing a switch to generate a spark. Thus gas flow to the burner and spark. On the extra low simmer burner there is a electric solenoid between the burner head and the gas valve. this has to open as well for gas to flow. What the potentior does is signal the simmer control what level of flame you are requesting and telling the spark module to generate a spark. Once you go to the exlow setting the potentior tells the simmer control what level of heat and will cycle the flame on and off. So when the burner knob was between low and extra low, the flame would cycle on and off. You have to seperate the top section of the cooktop from the burner box to change the potentior for it sits on top of the gas valve for that burner.

lowly is it the left burners that won't lite? I only ask as depending on the model some of the Thermador cook tops had simmer control burners. This is a 3 part system on the burners. 1 a simmer control, 2 electric solenoid, 3 potentiors. When you turn on the burner the potentior tells the simmer control to send power to the gas solenoid. At the same time the unit will spark. If your unit has extra low on the left 2 burners then you have this system. The usual problem in the potentior. Hope this helps.

the igniter switch are stuck /need clean contactor of the igniter .