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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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.
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$14.36
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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.
$30.62
16% OFF Phone Price : $36.62
In Stock
Element 23790-2
#5

Water heater diagram

Element

Part #23790-2

Replaced by #100110051

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Manufacturer substitution
This part replaces 23790-2. Substitute parts can look different from the original.
In Stock
Thermostat 182499
#15

Water heater diagram

Thermostat

Part #182499

Replaced by #100109846

?
Manufacturer substitution
This part replaces 182499. Substitute parts can look different from the original.
In Stock
Anode,alum 183523-33
#1

Water heater diagram

Anode,alum

Part #183523-33

Replaced by #100109594

?
Manufacturer substitution
This part replaces 183523-33. Substitute parts can look different from the original.
In Stock
Hex Plug 42290
#7

Water heater diagram

Hex plug

Part #42290

Replaced by #9005897015

?
Manufacturer substitution
This part replaces 42290. Substitute parts can look different from the original.
This item is not returnable
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
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
Element 23790-4
#5A

Water heater diagram

Element

Part #23790-4

Replaced by #100109061

?
Manufacturer substitution
This part replaces 23790-4. Substitute parts can look different from the original.
In Stock
Protector 39909
#12

Water heater diagram

Protector

Part #39909

Replaced by #039909-000

?
Manufacturer substitution
This part replaces 39909. Substitute parts can look different from the original.
This item is not returnable
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…

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 anode rod

How to replace an electric water heater anode rod

If your hot water begins to smell like rotten eggs, replace the anode rod with a zinc-aluminum anode rod following the i…

Repair difficulty
Time required
 15 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

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.

How to read a wiring schematic video

How to read a wiring schematic video

Learn how to decipher symbols so you can buy the right part for your problem.…

Easy DIY water heater repairs

Easy DIY water heater repairs

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

Water heater common questions

Water heater common questions

These common questions and answers can help you make the most of your water heater.…