GE JGP389 Adjust LOW Flame Setting, Check for Leaks, Check Quality of Flames

Clockwise to reduce flame size.

5CONVERT GRILL BURNER AIR SHUTTER (on some models)

7ADJUST LOW FLAME SETTING

1.Light the top burners and continue turning all of the surface knobs to LOW.

To		Open
To
	Close

Air Opening

Air Shutter

Insert screwdriver blade in slot and twist with slight pressure to allow air shutter to slide easily.

The left hand air shutter controls the rear half of the grill burner; the right hand shutter controls the front half.

2.Remove all 4 knobs.

3.With a small flat blade screwdriver, turn the valve set screws clockwise to decrease flame size, counterclockwise to increase flame size. Adjust until the flame is about the same height as the top of the burner.

4.Replace the knobs.

Counterclockwise

to increase flame size.

Valve

Stem

Slide air shutter backward or forward to increase or decrease the size of the air opening. Air shutters fit snugly on the grill burner, so a screwdriver blade may be required to make this adjustment (see illustration). The snug fit of the air shutter assures it will remain positioned correctly.

6 CHECK FOR LEAKS

When all connections have been made, make sure all cooktop controls are in the off position and turn on the main gas supply valve. Use a liquid leak detector at all joints and connections to check for leaks in the system.

CAUTION: DO NOT USE A FLAME TO CHECK FOR GAS LEAKS.

When using test pressures greater than 1⁄2 PSIG to pressure test the gas supply system of the residence, disconnect the cooktop and individual shut-off valve from the gas supply piping. When using test pressures of 1⁄2 PSIG or less to test the gas supply system, simply isolate the cooktop from the gas supply system by closing the individual shut-off valve.

8 CHECK QUALITY OF FLAMES

The combustion quality of burner flames needs to be determined visually.

(A) Yellow flames—Call for service

(B) Yellow tips on outer cones—Normal for LP gas

(C) Soft blue flames—Normal for natural gas

If burner flames look like (A), call for service. Normal burner flames should look like (B) or (C), depending on the type of gas you use.

With LP gas, some yellow tipping on outer cones is normal.

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