State GS6 75 URRBS - Manual (Page 23)

23
Replacing the Burner Door Assembly
1. Check the door gasket for damage or imbedded debris prior
to installation.
2. Inspect the viewport for damage and replace as required.
3. Insert the burner door assembly into the combustion
c h a m b e r a n d s l i d e i t c o m p l e t e l y f o r w a r d .
Note: When inserting the burner door assembly, tip the burner
end up slightly to ensure it engages with the burner bracket.
4. Inspect the door gasket and make sure there is no fi berglass
insulation between the door gasket and the combustion
chamber.
5. Replace the four screws securing the burner door assembly
to the combustion chamber and tighten securely. Once the
burner door assembly is tightened, visually inspect the door
gasket between the burner door assembly and the combustion
chamber for spaces or gaps that would prevent a seal.
IMPORTANT: Do not operate the water heater if the door gasket
does not create a seal between the burner door assembly and
the combustion chamber.
6. Reconnect the manifold tubing, pilot tubing and thermocouple
to the thermostat. Do not cross-thread or apply any thread
sealant to these fi ttings. The thermocouple nut should be
started and turned all the way by hand. An additional 1/2 - 3/4
turn with a 7/16” open end wrench will then be suffi cient to seat
the lockwasher.
7. Reconnect the ignitor wire.
8. Turn the gas on and refer to the “Lighting Instructions”
9. Check for leaks by brushing on an approved leak detection
solution. Bubbles will show a leak. Correct any leak found.
10. Replace the outer door.
result in death, explosion, or fire.
WARNING
Replace manifold component block if missing
or removed.
Replace door gasket if damaged.
Failure to follow these instructions can
Replace viewport if glass is missing or
damaged.
Tighten burner door screws
securely.
Explosion Hazard
Remove any fiberglass between gasket
and combustion chamber.
Piezoelectric Igniter System
The piezoelectric igniter system consists of the igniter button,
electrode and wire. The pilot is ignited by an electric spark generated
when the igniter button is pressed. The electrode should be centered
between the pilot and thermocouple (Figure 23). Use only factory
authorized piozoelectric igniter parts for replacement.
Testing the Igniter System
Turn off the gas to the water heater at the manual gas shut-off valve.
Watch the electrode tip while activating the igniter. A visible spark
should jump from the electrode. To avoid shock, do not touch the
burner or any metal part on the pilot or pilot assembly. If no spark is
visible, check the wire connections and make sure the electrode is
not broken. Replace the electrode if defective. Note: The electrode is
part of the pilot assembly and cannot be replaced seperately. Dirt and
rust on the pilot or electrode tip can prevent the ignitor spark. Wipe
clean with a damp cloth and dry completely. Rust can be removed
from the electrode tip and metal surfaces by lightly sanding with an
emory cloth or fi ne grit sandpaper.
Electrode
Thermocouple
Pilot
FIGURE 23