State
Gas Water Heater

Model # GS640YOCT200 Official State water heater

Here are the diagrams and repair parts for Official State GS640YOCT200 water heater, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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Showing 10 of 21 parts  |

Water Heater Thermocouple (replaces 194621, 6900725, 9000056, 9002322) 9000056015
#NI

Water heater diagram

Water heater thermocouple (replaces 194621, 6900725, 9000056, 9002322)

Part #9000056015

BEST SELLER
$17.72
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In Stock
Water Heater Manifold Door Gasket 9006141015
#NI

Water heater diagram

Water heater manifold door gasket

Part #9006141015

$25.49
19% OFF Phone Price : $31.49
In Stock
Water Heater Burner (replaces 100110929) 9006136005
#NI

Water heater diagram

Water heater burner (replaces 100110929)

Part #9006136005

$23.93
20% OFF Phone Price : $29.93
In Stock
Ring 9000275015
#2

Water heater diagram

Ring

Part #9000275015

Replaced by #100108369

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Manufacturer substitution
This part replaces 9000275015. Substitute parts can look different from the original.
In Stock
Water Heater Anode Rod (replaces 183523-033, 183523-036, 183523-039, 183523-042, 183523-33, 183523-36, 183523-48, 4700276, 9003889, 9003892, 9004092, 9004335005) 9003892005
#6

Water heater diagram

Water heater anode rod (replaces 183523-033, 183523-036, 183523-039, 183523-042, 183523-33, 183523-36, 183523-48, 4700276, 9003889, 9003892, 9004092, 9004335005)

Part #9003892005

Replaced by #100109594

?
Manufacturer substitution
This part replaces 9003892005. Substitute parts can look different from the original.
In Stock
Water Heater Gas Control Valve 9006656005
#10

Water heater diagram

Water heater gas control valve

Part #9006656005

Replaced by #100111371

?
Manufacturer substitution
This part replaces 9006656005. Substitute parts can look different from the original.
In Stock
Water Heater Vent Draft Hood 9006647005
#1

Water heater diagram

Water heater vent draft hood

Part #9006647005

Replaced by #100111362

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Manufacturer substitution
This part replaces 9006647005. Substitute parts can look different from the original.
In Stock
Water Heater Temperature And Pressure Relief Valve (replaces 9007483005) 9000728015
#8

Water heater diagram

Water heater temperature and pressure relief valve (replaces 9007483005)

Part #9000728015

Replaced by #100108455

?
Manufacturer substitution
This part replaces 9000728015. Substitute parts can look different from the original.
In Stock
Water Heater Manifold Door And Burner Assembly 9006620005
#NI

Water heater diagram

Water heater manifold door and burner assembly

Part #9006620005

Replaced by #100111336

?
Manufacturer substitution
This part replaces 9006620005. Substitute parts can look different from the original.
In Stock
Water Heater Anode Rod (replaces 9003920) 9006299005
#6A

Water heater diagram

Water heater anode rod (replaces 9003920)

Part #9006299005

Replaced by #100111073

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Manufacturer substitution
This part replaces 9006299005. Substitute parts can look different from the original.
In Stock

Most common symptoms to help you fix your water heaters

Choose a symptom to see related water heater repairs.

Main causes: lack of power, no gas supply, thermostat limit switch tripped, bad element, bad thermostat, gas valve failu…

Main causes: loose water pipe fittings, leaky drain valve, bad temperature-pressure relief valve, leaky heating element,…

Main causes: water supply needs chlorine treatment, anode rod too reactive…

Main causes: broken heating element, thermostat failure, excessive tank sediment, tank size too small, burner valve asse…

Main causes: faulty pressure relief valve, water is overheating…

Main causes: thermostats need adjustment, water heater capacity too low, bad heating element, thermostat failure, excess…

Main causes: thermostat temperature set too high, thermostats need adjustment, faulty thermostat, shorted heating elemen…

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How to read a wiring schematic video

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Water heater common questions

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