Service Manual for the Thermador Pro Harmony Range, Model PRL364GDH/01
58300000154022_ARA_EN_D
Page 10 of 68
2.4 Burner Assembly and Maintop Components
Figure 7: Burner Assembly and Maintop Components
3 TESTING, SETTING, TROUBLESHOOTING -
BURNERS AND IGNITION
Servicing Burners and Ignition
■ Burner and ignition servicing must be performed by a qualified
technician.
■ Improper adjustments may be dangerous, cause damage or
harmful by-products, and may void the appliance warranty.
Ignition Hazard
Do not touch burners when the igniters are active (sparking).
3.1 Before Testing
Before testing the burners and ignition, do the following:
1. Reinstall any loose components that may have been removed
earlier, such as burner caps, griddle, and grates. Be certain that
burner caps seat properly into the burner bases, burner pedestal
and Venturi tube are aligned correctly, and that the ignition wires
are properly positioned.
2. To test for gas leaks, make sure the electrical power is removed
and the manual gas shut-off valve is open, and then carefully
check range components and gas supply for leaks using a gas
leak detector or bubble test.
3. After gas checks are complete and before testing, connect the
range to the electrical power supply.
3.1.1 Oven Temperature Testing
**Do not remove the thermocouple prematurely when the oven is hot.
Test oven temperature using a thermometer with a thermocouple
lead. If you leave the thermocouple in the oven during a speed
clean cycle, keep in mind it will take a few hours before the oven
is cool enough to retrieve the thermocouple.
Convection Bake
For convection bake, you can visually inspect if the convection fan
is working. The convection fan only works after the preheating
finishes, thus it may take less time to test the convection fan on
the lowest bake convection setting.