American Water Heaters
Gas Water Heater

Model # FG12240T403NO Official American Water Heaters water heater

Here are the diagrams and repair parts for Official American Water Heaters FG12240T403NO 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 18 parts  |

Water Heater Manifold Door Gasket 6910424
#19

Water heater diagram

Water heater manifold door gasket

Part #6910424

Replaced by #9008309015

?
Manufacturer substitution
This part replaces 6910424. Substitute parts can look different from the original.
BEST SELLER
$27.02
18% OFF Phone Price : $33.02
In Stock
Water Heater Igniter Assembly (replaces 100093756) 6910561
#12

Water heater diagram

Water heater igniter assembly (replaces 100093756)

Part #6910561

$60.49
9% OFF Phone Price : $66.49
In Stock
Drain Valve 6900764
#9

Water heater diagram

Drain valve

Part #6900764

Replaced by #100109106

?
Manufacturer substitution
This part replaces 6900764. Substitute parts can look different from the original.
In Stock
Water Heater Piezo Igniter Bracket 6910426
#22A

Water heater diagram

Water heater piezo igniter bracket

Part #6910426

Replaced by #100093718

?
Manufacturer substitution
This part replaces 6910426. Substitute parts can look different from the original.
In Stock
Water Heater Propane Gas Control Valve 6910554
#10A

Water heater diagram

Water heater propane gas control valve

Part #6910554

Replaced by #100093749

?
Manufacturer substitution
This part replaces 6910554. Substitute parts can look different from the original.
In Stock
Draft Hood 2710001
#1

Water heater diagram

Draft hood

Part #2710001

Replaced by #100111362

?
Manufacturer substitution
This part replaces 2710001. Substitute parts can look different from the original.
In Stock
T&p Valve 6900745
#8

Water heater diagram

T&p valve

Part #6900745

Replaced by #100108279

?
Manufacturer substitution
This part replaces 6900745. Substitute parts can look different from the original.
In Stock
Water Heater Pilot Igniter 6910430
#22

Water heater diagram

Water heater pilot igniter

Part #6910430

Replaced by #100110936

?
Manufacturer substitution
This part replaces 6910430. Substitute parts can look different from the original.
In Stock
Water Heater Anode Rod 4710180
#7

Water heater diagram

Water heater anode rod

Part #4710180

Replaced by #100109594

?
Manufacturer substitution
This part replaces 4710180. Substitute parts can look different from the original.
In Stock
Natural Burner 3110024
#14

Water heater diagram

Natural burner

Part #3110024

Replaced by #186063-000

?
Manufacturer substitution
This part replaces 3110024. Substitute parts can look different from the original.
$44.15
12% OFF Phone Price : $50.15
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.…