Replacing The Bake Burner Electrode - Large Oven - Thermador PRL304EG Service Manual

Service Manual for Thermador Pro Grand LP Gas Ranges, Models: PRL304EG, PRL364EDG, PRL364ELG, PRL366EG, PRL484ECG, PRL486EDG, PRL486EDPG, PRL484ELG
Gas Leak Testing
With electrical power off, carefully check for gas leaks at each gas
component that was removed, replaced, or otherwise serviced using a
gas leak detector or bubble test.
4.7.6.3 Replacing the Bake Burner Electrode – Large Oven
In some models an electrode ignites the bake burner while in other
models a hot surface igniter (HSI) ignites the bake burner.
For the models that use the electrode as an igniter as well as the
models that use the HSI as an igniter, the electrode also functions as
a flame sensor – that is, if the electrode does not heat up enough in a
short time frame, the electrode will close the solenoid valve to avoid
gas build-up in the burner.
The direct spark ignition (DSI) module is used whenever the electrode
is the igniter for the bake burner (whether or not the broil burner uses
the HSI or electrode as the igniter). See DSI Module Removal and
Replacement, page 63.
Be sure to check QuickFinder for relevant information, documentation,
and the correct part number when replacing this component.
58300000156573_ARA_EN_B
Figure 206: Electrode / Flame Sensor (Shown on Burner Box)
1. Perform all steps in Replacing the Bake Burner – Large Oven,
page 97.
2. At back of the range, use gloves to reach underneath and detach
the wire spade connector (on the green wire) from the electrode
terminal (see Figure 207 and Figure 208 on page 103).
Page 102 of 119