36
TROUBLESHOOTING
Gas Valve & Ignition Module
CHANGE INSERT ORIFICES (See Fig. 7)
1.
Disconnect pilot tubing from the pilot burner and
remove insert orifice. Sometimes a light force is
required to remove the orifice.
2.
Cut off old compression fitting.
NOTE:
When replacing an orifice, cut off old
compression fitting and replace with a new
compression fitting. Never use old compression fitting
as it may not provide a gastight seal.
3.
Square off end of pilot tubing and remove all burrs.
4.
Insert new compression nut over pilot tubing and slide
out of the way.
5.
Insert new orifice into pilot burner and push pilot
tubing into the pilot burner until it bottoms.
6.
While holding tubing all the way in, slide compression
fitting into place and engage threads. Turn until finger
tight.
7.
Using a wrench, tighten compression fitting one turn
beyond finger tight.
GAS LEAK TEST:
1. Ensure that gas supply is turned on at the appliance
service valve.
2.
Paint pipe connections upstream of pilot burner with
rich soap and water solution. Bubbles indicate gas
leak.
3.
If leak is detected, tighten pipe connections.
4.
Stand clear of main burner while lighting to prevent
injury caused from hidden leaks which could cause
flashback in the appliance vestibule. Light main
burner.
5.
With main burner in operation, paint pipe joints
(including adapters) and gas control inlet and outlet
with rich soap and water solution.
6.
If another leak is detected, tighten adapter screws,
joints, and pipe connections.
7.
Replace part if leak cannot be stopped.
ADJUST PILOT FLAME
The pilot flame should envelop 3/8 to 1/2 in. [10 to 13
mm] of the thermocouple or thermopile tip. To adjust pilot
flame:
1.
Remove pilot adjustment cover screw from gas
control.
2.
Turn inner pilot adjustment screw clockwise to
decrease or counterclockwise to increase pilot
flame.
3.
Always replace pilot adjustment cover screw and
tighten firmly after completing adjustment to ensure
proper operation.
CROSS SECTION
INSERT ORIFICE
FIG. 7 - CHANGING INSERT ORIFICES
BL_ST_INSTL_RevB_4.08.19
