Replacing The Bake Burner Hot Surface Igniter - Small Oven - Thermador PRL304EG Service Manual

Service Manual for Thermador Pro Grand LP Gas Ranges, Models: PRL304EG, PRL364EDG, PRL364ELG, PRL366EG, PRL484ECG, PRL486EDG, PRL486EDPG, PRL484ELG
13. After the bracket with elbow connector and orifice attached drops,
remove the tab from the slot in the burner box (see Figure 223),
and gently pull it out.
14. Replace the burner, or adjust the air shutter if necessary.
NOTE: Although the air shutter is optimally set in the factory, it
may be adjusted by unscrewing the adjustment screw and rotating
the air shutter so that its opening is more open or closed (see
Figure 221 on page 108, and Adjusting Bake Burner Flame on
page 14).
Figure 223: Burner Box (Shown with Bracket Detached)
1 Slot that receives the bake burner tab
2 Screw locations (2) holding bracket onto burner box
58300000156573_ARA_EN_B
15. When installing a bake burner:
a. Insert the burner's tab into the respective slot on the burner
box (see Figure 221 on page 108, and Figure 223).
b. Then you will need either a third hand to assist or something
non-abrasive (like a glove) to prop up the bake burner, so that
it is secured in its correct "installed" position, while you install
the pin of the bracket (with elbow connector and orifice
securely attached) onto the burner receptacle.
c. From inside the burner box, re-attach the two screws through
the burner box chassis onto the respective bracket holes (see
Figure 222 on page 108, and Figure 223). Both sets of holes
must be aligned. Be careful so that the bracket's pin doesn't
move out of the receptacle on the bake burner.
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.
4.7.7.2 Replacing the Bake Burner Hot Surface Igniter – Small
Oven
In some range models a hot surface igniter (HSI) ignites the bake
burner, while in other models an electrode 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.
Be sure to check QuickFinder for relevant information, documentation,
and the correct part number when replacing this component.
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