State Industries GS6 30 YBRT Series 200 Manuel D’Utilisation

29

Replacing the Gas Valve:
1.   To replace the gas control valve/thermostat, 

reassemble in reverse order. When replacing the gas 
control valve/ thermostat, thread a correctly sized 
pipe into the inlet and use it to turn the gas valve 
(clockwise.) DO NOT OVER TIGHTEN or damage may 
result. NOTE: Use an approved 

TEFLON

®

 tape or pipe 

compound only on the threaded section of the gas 
control valve/thermostat that screws into the tank. 

2.   Reconnect the gas piping to the gas control valve/

thermostat. NOTE: Use an approved Teflon tape or 
pipe compound on the gas piping connections.

3.   Attach the igniter and bracket to the new gas control 

valve/thermostat, clipping it at the back edge of 
thermostat and snapping it into place. NOTE: Do not 
use the (pilot) ferrule nut supplied with the new gas 
control valve/thermostat, unless the existing nut is not 
usable. Reconnect the pilot tube, manifold tube, igniter 
wire, and thermal switch wires. NOTE: L.P. gas systems 

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

4.   Fill the tank completely with water. NOTE: To purge the 

lines of any excess air, keep the hot water faucet open 

for 3 minutes after a constant flow of water is obtained.

5.  Turn on the gas supply and test the gas supply 

connections by brushing on an approved noncorrosive 

leak detection solution. Bubbles forming indicate a 

leak. Correct any leak found.

6.   Check the operation of the burner by following the 

lighting instructions on the front of the water heater. 

With the burner lit, check the gas control valve/

thermostat supply line, manifold tube and pilot tube 

connections for leaks. 

7.  Verify proper operation and then replace the outer door.
8.  If additional information is required, contact Residential 

Technical Assistance by referencing the phone number on 

the water heater.

TEFLON

®

 is a registered trademark of E.I. Du Pont De Nemours and Company

1.  Manifold gasket properly sealed.
2.  Viewport not damaged or cracked.
3.  Flame-arrestor free of debris and undamaged.
4.  Two piece wire connector properly installed.

5.  No leaks at pilot and manifold connection.
6.  Manifold door screws securely tightened. 
7.  Depress the button on the thermal switch

BURNER WILL NOT IGNITE

1.  Pilot not lit

2.  Thermostat set too low

3. No 

gas

4.  Dirt in the gas lines

5.  Pilot line clogged

6.  Main burner line clogged

7. Non-functioning 

thermocouple

8. Non-functioning 

thermostat

9.  Heater installed in a confined area

1. Light 

pilot

2.  Turn temp. dial to desired temperature

3.  Check with gas utility company

4.  Notify utility-install trap in gas line

5.  Clean, locate source and correct

6.  Clean, locate source and correct

7. Replace 

thermocouple

8. Replace 

thermostat

9.  Provide fresh air ventilation

SMELLY WATER

1.  Sulfides in the water

1.  Replace the anode with a special anode. 

Contact Residential Technical Assistance

BURNER FLAME YELLOW-

LAZY

1.  Insufficient secondary air

2.  Low gas pressure

3.  Water heater flue or vent system 

blocked

4.  Main burner line clogged

5.  Heater installed in a confined area

6.  Obstruction in main burner orifice

1.  Provide ventilation to water heater

2.  Check with gas utility company

3.  Clean, locate source and correct

4.  Clean, locate source and correct

5.  Proper fresh air ventilation

6.  Clean or replace orifice

PILOT WILL NOT LIGHT OR 

REMAIN LIT

1. Non-functioning 

igniter

2.  The thermal switch tripped

3.  Wire lead connection at thermal 

switch loose

4.  Thermocouple connection loose

5.  Air in gas line

6.  Low gas pressure

7. No 

gas

8.  Dirt in gas lines

9. Cold 

drafts

10.  Thermostat ECO switch open

11.  Pilot line or orifice clogged

12. Non-functioning thermocouple

13.  Air for combustion obstructed

14.  Flammable vapors incident, FVIR 

function actuated

15.  Base-ring filter obstructed

1.  Replace igniter pilot assembly

2.  See Pilot Light Troubleshooting Flowchart section

3.  Remove and reconnect the wire leads at 

thermal switch, confirm connections are tight 

and not loose

4.  Finger tighten; then 1/4 turn with wrench

5.  Bleed the air from the gas line

6.  Check with gas utility company

7.  Check with gas utility company

8.  Notify utility-install dirt trap in gas line

9.  Locate source and correct

10. Replace thermostat

11.  Clean, locate source and correct

12. Replace thermocouple

13.  See maintenance section for inspection and  

  cleaning of flame trap 

14.  Replace water heater, eliminate flammable 

vapors source. Contact Residential Technical 

Assistance

15.  Inspect and clean base-ring filter. See 

“External Cleaning & Inspection of the 

Base-Ring Filter.”