Thermador Cooktop Griddle Doesn't Heat Properly

Oven Repair (including Ranges and Cooktops)
,
1

The griddle on my Thermador PCS484 cooktop will only heat if the control knob is set to the highest temperature position (and sometimes not even then).

Once lit (with control in highest temperature position) if the knob is moved to a lower set temperature, the ignitor goes off and the flames extinguish.

Ignitor is "glow" type (not spark).

What parts do I need?

3

Hello.

Based on the information you provided the griddle thermostat is damaged and should be replaced

415004

Assuming that the complete model number of the cooktop is PCS484GD here are the breakdown diagrams and http://www.appliancepartspros.com/18-burner-box-parts-for-thermador-pcs484gd.html

Post the results.

Simon.