GE JGP389, Use And Care & Installation Manual

Page: 29 / 64

29
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.
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.
CAUTION: DO NOT USE A FLAME TO
CHECK FOR GAS LEAKS.
6
ADJUST LOW FLAME SETTING
1. Light the top burners and continue turning
all of the surface knobs to LOW.
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.
7
CHECK QUALITY OF FLAMES
The combustion quality of burner flames needs
to be determined visually.
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.
8
CONVERT GRILL BURNER AIR
SHUTTER
(on some models)
The left hand air shutter controls the rear half of
the grill burner; the right hand shutter controls
the front half.
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.
5
Air Opening
To Open
Air Shutter
Insert screwdriver blade in slot and
twist with slight pressure to allow air
shutter to slide easily.
To Close
(A) Yellow flames—
Call for service
(B) Yellow tips on outer
cones—
Normal for LP gas
(C) Soft blue flames— Normal for
natural gas
Valve
Stem
Clockwise
to reduce
flame size.
Counterclockwise
to increase
flame size.