State
Gas Water Heater

Model # GS640HOCT201 Official State water heater

Here are the diagrams and repair parts for Official State GS640HOCT201 water heater, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

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

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
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
$17.19
10% OFF Phone Price : $19.19
In Stock
Water Heater Burner (replaces 100111320) 9006603005
#NI

Water heater diagram

Water heater burner (replaces 100111320)

Part #9006603005

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 Pilot Burner And Igniter 9006667015
#NI

Water heater diagram

Water heater pilot burner and igniter

Part #9006667015

Replaced by #100111381

?
Manufacturer substitution
This part replaces 9006667015. 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
Filter 9006616005
#NI

Water heater diagram

Filter

Part #9006616005

Replaced by #100111332

?
Manufacturer substitution
This part replaces 9006616005. Substitute parts can look different from the original.
In Stock
Kenmore Water Heater Piezo Igniter Generator With Bracket 9003410015
#NI

Water heater diagram

Kenmore water heater piezo igniter generator with bracket

Part #9003410015

Replaced by #100109221

?
Manufacturer substitution
This part replaces 9003410015. 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

?
Manufacturer substitution
This part replaces 9006299005. Substitute parts can look different from the original.
In Stock
Water Heater Inlet Tube Gasket 9002277015
#NI

Water heater diagram

Water heater inlet tube gasket

Part #9002277015

Replaced by #100108744

?
Manufacturer substitution
This part replaces 9002277015. Substitute parts can look different from the original.
In Stock
Inlet Tube 9006690005
#5

Water heater diagram

Inlet tube

Part #9006690005

Replaced by #100111401

?
Manufacturer substitution
This part replaces 9006690005. 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: thermostats need adjustment, water heater capacity too low, bad heating element, thermostat failure, excess…

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

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

Effective articles & videos to help repair your water heaters

Use the advice and tips in these articles and videos to get the most out of your water heater.

Wiring schematic symbols explained video

Wiring schematic symbols explained video

Learn some of the most common symbols found in a wiring diagram and what they mean.…

Using a wiring schematic to trace a current video

Using a wiring schematic to trace a current video

Find out what’s wrong with your appliance by following a circuit.…

Easy DIY water heater repairs

Easy DIY water heater repairs

Read about some water heater repairs that you can easily do yourself.…