Thermador PRG304GH Installation Instructions - Page 19
Step 10: Burner Test and Adjustment
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Step 10: Burner Test and Adjustment Install any loose components, such as burner caps and grates, that may have been removed earlier. Be certain that burner caps seat properly into the burner bases. Before testing operation of the appliance, verify that the unit and the gas supply have been carefully checked for leaks and that the unit has been connected to the electrical power supply. Turn the gas shut-off valve to the open position. Test Rangetop Burners Yellow Flames: Further Adjustment is required. Yellow Tips on Outer Cones: Normal for LP Gas Test Burner Ignition. Select a rangetop burner knob. Push in and turn counterclockwise to HI. The ignitor/spark module will produce a clicking sound. Once the air has been purged from the supply lines, the burner should light within four (4) seconds. Test Flame: High Setting. Turn burner on to HI. See Figure 13 for appropriate flame characteristics. If any of the rangetop burners continue to burn mostly or completely yellow, verify that the burner cap is positioned properly on the burner base, then retest. If flame characteristics do not improve, call Thermador. Test Flame: Low Setting. Turn burner on to SIM. Verify that the flame travels complete around the burner. This is known as "carry over". There should be a flame at each burner port and there should be no air gap between the flame and the burner. If any burners do not "carry over", call Thermador. The two left burners feature XLO, that causes the flame to cycle on and off when the knob is set to the XLO range. This is normal operation. Repeat these Ignition and Flame Test procedures for each rangetop burner. Soft Blue Flames: Normal for Natural Gas If the flame is completely or mostly yellow, verify that the regulator is set for the correct fuel. After adjustment, retest. Some orange-colored streaking is normal during the initial start-up. Allow unit to operate 4-5 minutes and re-evaluate before making adjustments. Figure 13: Flame Characteristics When Flame is Properly Adjusted: • There should be a flame at each burner port. • There should be no air gap between the flame and burner port. Test Oven Burners Remove the oven bottom cover. Remove the 4 screws on the sides and the 2 screws on the back, then slide the cover forward while lifting to clear the angled baffle plate mounted to the bottom of the cover. Note: The air shutter for the bake burner is set at the factory for fully-open position under all conditions, and does not require adjustment. Test Bake Burner Ignition Set the oven to BAKE at 350°F. After 30-75 seconds, the burner will ignite. The burner will stay lit until 350°F is reached and then shut off. From this point forward, the burner will cycle on and off to maintain the temperature. English 17