State Industries GS6 50 YBRT Series 201 User Manual

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10.  Reposition the two piece wire connector in the manifold 

door opening and secure it with the retainer clip.

11.  Carefully bend the new pilot tube and thermocouple 

to match the bend of the manifold tube. NOTE: When 

bending DO NOT crimp or crease the pilot tube or 

thermocouple. (Figure 25)

12.  Before you proceed to the next step, install the new 

brass ferrule nut in the gas control valve/thermostat’s 

pilot tube opening.  HAND TIGHT ONLY.

13.  See Replacing the Manifold/Burner Assembly.

1.  At least annually check the base-ring filter (Figure 29)

for any dust or debris that may have accumulated on 
the filter screen. NOTE: If the water heater is located 
in an area that is subjected to lint and dirt, it may be 
necessary to check the base-ring filter more frequently. 

2.  Follow the Lighting Instructions to turn off the water 

heater and allow it to cool for 10 minutes before 
attempting to clean the base-ring filter. 

3.  Use a vacuum cleaner with a hose attachment to 

remove any dust or debris that may have accumulated 
on the filter. NOTE: If unable to inspect or clean the 
base-ring filter, follow the “Cleaning the Combustion 
Chamber and Flame-arrestor” instructions.  

4.  After the base-ring filter has been cleaned, follow 

the Lighting Instructions to return the water heater to 
service.

1.  Follow procedure outlined in “Removing the Manifold/

Burner Assembly”.

2.  Use a vacuum cleaner/shop vac to remove all loose 

debris in the combustion chamber (Figure 29). Use 
compressed air to clear any dust or debris that may 
have accumulated in the flame-arrestor.

3.  Reassemble following the procedure under “Replacing 

the Manifold/Burner Assembly”.

1.  Check the door gasket for damage or imbedded debris 

prior to installation.

2.  Inspect the view port for damage and replace as 

required.

3.  Insert the manifold/burner assembly into the burner 

compartment making sure that the tip of the manifold 
tube engages in the slot of the bracket inside the 
combustion chamber (Figures 30 & 31). 

4.  Inspect the door gasket and make sure there is no 

fiberglass insulation between the gasket and the 
combustion chamber.

5.  Replace the two screws, which secure the manifold/

burner assembly door to the combustion chamber 
and tighten securely. Once the manifold/burner 
assembly door is tightened, visually inspect the door 
gasket between the manifold/burner assembly door 
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 manifold door and the combustion 
chamber.

6.  During the following procedure, do not cross-thread 

or apply any thread sealant to any of the fittings listed 

below.  First, reconnect the manifold tubing to the gas 

control valve/thermostat.  NOTE: L.P. gas systems use 

reverse (left-hand) threads on the manifold tube.

 

NOTE:  If a ferrule nut needs to be installed for the pilot 

tube, locate the one provided with your parts kit.  Install 

it in the gas control valve/thermostat at the pilot loca-

tion, hand tight only. Next, insert the pilot tube into the 

ferrule nut until it bottoms out.  

 

NOTE: Hold the tube in this position.  Tighten the fer-

rule nut with a wrench until the crimp connection seals 

to the pilot tube.  Continue to tighten until the nut is