Jenn-Air 720-0720 Installation Instructions And User Manual

Also see for 720-0720: Use & care guide Installation Instructions and Use & Care Guide

Contents

Jenn-Air 720-0720 Installation Instructions And User Manual Manual pdf 18 page image

18Check and Adjust the BurnersThe burners are tested and factory-set for most efficientoperation. However, variations in gas supply and other conditionsmay make minor adjustments to air shutter or low flame settingnecessary.It is recommended that a qualified person make burneradjustments.NOTE: The rotisserie burner cannot be adjusted.Checking and adjusting the grill burner flames requires removingthe grates and flame tamers.Burner Flame CharacteristicsThe flames of the grill burners and side burners (on some models)should be blue and stable with no excessive noise or lifting (LPgas flames will have a slightly yellow tip). A yellow flame indicatesnot enough air. If flame is noisy or lifts away from the burner, thereis too much air. Some yellow tips on flames when the burner is setto HI setting are acceptable as long as no carbon or soot depositsappear. The flames should be approximately 1" (2.5 cm) high.Check that burners are not blocked by dirt, debris, insect nests,etc., and clean as necessary. If they are clean, adjust air shuttersas needed.IMPORTANT: Before adjusting air shutters, let burners coolcompletely.To Adjust:1. Light grill using information in the “Outdoor Grill Use” section.2. Observe flame to determine which burners need adjustmentand how the flame is acting.3. Turn off the valve and wait until grill and burners coolcompletely.4. Remove grill grates and flame tamers.5. Remove the screw and the clip that hold the burner in place.Remove gas burner from the grill.6. If flame is yellow (not enough air), turn air shutter adjustmentscrew counterclockwise.If flame is noisy or lifts away from burner (too much air), turnair shutter adjustment screw clockwise.Adjustment should be made clockwise or counterclockwisefrom 1/8" (3.2 mm) to 1/4" (6.4 mm).7. Replace gas burner, flame tamers and grates.8. Light grill using information in the “Outdoor Grill Use” section.See “Burner Flame Characteristics.”Low Flame AdjustmentIf flame goes out on the “LO” setting, the low flame setting mustbe adjusted.1. Turn off the valve and wait until grill and burners are cool.2. Remove grill grates and flame tamers.3. Light grill using information in the “Outdoor Grill Use” section.4. Turn burner to its lowest setting.5. Remove each control knob for the main burners and sideburner by loosening the setscrew with the allen key.6. Hold valve stem with pliers and insert a small flat-bladescrewdriver into the shaft.7. Watch the flame and slowly turn the screwdrivercounterclockwise.8. Adjust flame to minimum stable flame.9. Replace the control knob and turn off the burner.10. Repeat steps 3 through 9 for each burner if needed.11. Replace the flame tamers and grates after the burners havecooled.A. ClipB. Screw1" (2.5 cm)ABA. Air shutter adjustment screwA. Valve stemB. Small flat-blade screwdriverC. PliersAAB C