GE JGP989 Technical Service Manual page 8

3. Remove the plastic pin from the inside of the
nut, turn the pin 180 degrees and snap the pin
back into the nut.
Natural gas
Nut
4. Reinstall the nut onto the regulator.
5. Apply the LP conversion label next to the rating
plate.
Test for Leaks
WARNING: Do not use a flame to check for leaks!
Do not use the cooktop until all connections have
been leak tested.
Perform leak test per the following instructions:
1. Purchase a liquid leak detector or prepare a
soap solution of one part water, one part liquid
detergent.
2. When all connections have been made, make
sure all cooktop controls are turned to OFF and
turn the gas supply valve to ON.
3. Apply the liquid leak detector or the soap solu-
tion around all connections from the shutoff
valve to the cooktop.
4. A leak is identified by a flow of bubbles from the
area of the leak.
5. If a leak is detected, turn the gas supply off.
Tighten the fitting. Turn the gas ON and test
again. If the leak persists, turn the gas supply
OFF and contact your dealer for assistance.
Do not attempt to operate the cooktop if a leak
is present.
Check Ignition
1. Connect electrical supply cord.
2. Push down one control knob and turn to the
LITE position. The igniter will spark and the
burner will light. The first test may require some
time while air is flushed out of the gas line.
LP gas
3. Check to determine if your burner flames are
normal. If burner flames look like A, call for
service. Normal burner flames should look like
B o r C, depending on the type of gas you use.
With LP gas, some yellow tipping on outer
cones is normal.
A–Yellow flames
Call for service
4. Turn the knob to OFF.
5. Repeat the procedure for each burner.
Adjusting Low Flame (Simmer) Setting
WARNING: The following adjustments must be
made before turning on the burner. Failure to do so
could result in serious injury. Be sure pressure
regulator has been converted.
Note: The top burner valves have low flame/
simmer adjustment screws in the center of the
control shafts. A flashlight may be needed to
locate the screw. A small thin-blade screwdriver
(approximately 1/8-in. blade width) is needed to
access the screw.
1. Light 2 other burners and set the knobs to a
MEDIUM to HI setting.
2. Light the burner to be adjusted and turn the
knob to LOW.
3. Remove the knob and insert a screwdriver into
the valve shaft.
4 . Turn the adjustment screw until the flame
– 6 –
B–Yellow tips C–Soft blue flames
Normal for Normal for
LP gas natural gas