Testing Rangetop Burner Ignition; Time To Ignite; Testing Ignition For Standard Burner Settings (Hi, Medium, Sim); Testing Ignition For Xlo Burner Settings - Thermador Pro Grand Next Generation PRD48JDSGC/02 Service Manual

Service Manual for the Thermador Pro Grand Next Generation, Dual Fuel Range with Steam Oven, Models: PRD48JDSGC/02, PRD48JDSGU/02

3.4 Testing Rangetop Burner Ignition

Ignition Hazard
Do not touch the rangetop burners when the igniters are sparking.
3.4.1

Time to Ignite

For each burner, push the control knob in and then turn counter-
clockwise to the highest setting. The igniter should produce a clicking
sound as the burner is sparking, and the burner should light within 4
seconds.
NOTE: It is normal for the burner to spark when a knob is pressed in,
or turned slightly.
3.4.2 Testing Ignition for Standard Burner Settings (HI,
MEDIUM, SIM)
Set the burner knob to HI, and observe flame characteristics
(see Figure 5 and Figure 6). If any burner flame burns primarily
yellow, verify if the burner cap is positioned properly on the burner
base, and then re-test. Repeat test for MEDIUM and SIM settings.
If flame characteristics do not improve, call Thermador technical
support at (800) 444-9091.
3.4.3

Testing Ignition for XLO Burner Settings

Set the burner knob to XLO and observe if the flame cycles correctly.
It should be on for approximately 8 seconds, and then off for
approximately 52 seconds of each minute.
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3.5 Adjusting Rangetop Burner Valves Manually

Although pre-adjusted, if you need to set the valves for the lowest
possible flame setting, then manually adjust the bypass screws on the
valves.
Figure 7: Bypass Screw on Valve (View with Control Panel Removed)
1 Bypass screw on all valves
3.5.1

Special Tools Needed

To reposition the bypass screws for minimum flow settings on manual
valves, use a precision high-strength blade screwdriver, with a 1/8
inch (3.0 mm) wide, .020 inch (0.50 mm) thickness tip.
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