AO Smith
Electric Water Heater

Model # EES80T917 Official AO Smith water heater

Here are the diagrams and repair parts for Official AO Smith EES80T917 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 41 parts  |

T & P Valve 23740-1
#NI

Water heater diagram

T & p valve

Part #23740-1

Replaced by #9000071015

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Manufacturer substitution
This part replaces 23740-1. Substitute parts can look different from the original.
BEST SELLER
$16.01
11% OFF Phone Price : $18.01
In Stock
Gasket 42537
#6

Water heater diagram

Gasket

Part #42537

Replaced by #9000308005

?
Manufacturer substitution
This part replaces 42537. Substitute parts can look different from the original.
BEST SELLER
$19.69
9% OFF Phone Price : $21.69
In Stock
Lo Element 23790-6
#5C

Water heater diagram

Lo element

Part #23790-6

Replaced by #9002859115

?
Manufacturer substitution
This part replaces 23790-6. Substitute parts can look different from the original.
In Stock
Protector 182117-1
#14

Water heater diagram

Protector

Part #182117-1

Replaced by #9006078015

?
Manufacturer substitution
This part replaces 182117-1. Substitute parts can look different from the original.
In Stock
Element 23790-5
#5B

Water heater diagram

Element

Part #23790-5

Replaced by #9003947005

?
Manufacturer substitution
This part replaces 23790-5. Substitute parts can look different from the original.
In Stock
Insert 183360
#8

Water heater diagram

Insert

Part #183360

Replaced by #183360-000

?
Manufacturer substitution
This part replaces 183360. Substitute parts can look different from the original.
Back Order
Label 182734
#24

Water heater diagram

Label

Part #182734

Replaced by #182734-000

?
Manufacturer substitution
This part replaces 182734. Substitute parts can look different from the original.
In Stock
Collar 20172-21
#3

Water heater diagram

Collar

Part #20172-21

Replaced by #9004610115

?
Manufacturer substitution
This part replaces 20172-21. Substitute parts can look different from the original.
In Stock
Thermostat 182359
#17

Water heater diagram

Thermostat

Part #182359

Replaced by #9004714115

?
Manufacturer substitution
This part replaces 182359. Substitute parts can look different from the original.
$26.19
16% OFF Phone Price : $31.19
In Stock
Inlet Tube 183350-49
#18

Water heater diagram

Inlet tube

Part #183350-49

Replaced by #183350-049

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Manufacturer substitution
This part replaces 183350-49. Substitute parts can look different from the original.
This item is not returnable
Back Order

Most common symptoms to help you fix your water heaters

Choose a symptom to see related water heater repairs.

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

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

Repair guides for electric water heaters

How to replace a water heater element

How to replace a water heater element

If your water heater runs out of hot water quickly and one of the two heating elements has failed, replace the element f…

Repair difficulty
Time required
 30 minutes or less
How to replace an electric water heater thermostat

How to replace an electric water heater thermostat

If the water temperature fluctuates or you don't get enough hot water, follow these instructions to replace your water h…

Repair difficulty
Time required
 30 minutes or less
How to replace a water heater temperature and pressure (T&P) relief valve

How to replace a water heater temperature and pressure (T&P) relief valve

Replace a broken temperature/pressure (T&P) relief valve on an electric water heater using these instructions.…

Repair difficulty
Time required
 15 minutes or less

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.…