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AO Smith
Electric Water Heater

Model # ECS30 Official AO Smith water heater

Here are the diagrams and repair parts for Official AO Smith ECS30 water heater, as well as links to manuals and error code tables, if available.

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Error Codes

Model diagram and schematic

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Showing 10 of 24 parts  |
Element 042285-008
#14

Cabinet parts diagram

Element

Part #042285-008

Replaced by #100109647

?
Manufacturer substitution
This part replaces 042285-008. Substitute parts can look different from the original.
$60.00
In Stock
Thermostat 182354-000
#13

Cabinet parts diagram

Thermostat

Part #182354-000

Replaced by #100109846

?
Manufacturer substitution
This part replaces 182354-000. Substitute parts can look different from the original.
$53.33
In Stock
Dip Tube 183900-028
#2

Cabinet parts diagram

Dip tube

Part #183900-028

Replaced by #9003667005

?
Manufacturer substitution
This part replaces 183900-028. Substitute parts can look different from the original.
$8.49
In Stock
Bracket 184608-000
#12

Cabinet parts diagram

Bracket

Part #184608-000

Replaced by #100108380

?
Manufacturer substitution
This part replaces 184608-000. Substitute parts can look different from the original.
$27.78
In Stock
Access Panel 181260-000
#1

Cabinet parts diagram

Access panel

Part #181260-000

Replaced by #100109599

?
Manufacturer substitution
This part replaces 181260-000. Substitute parts can look different from the original.
$30.00
In Stock
Terminal Cover 182360-000
#11

Cabinet parts diagram

Terminal cover

Part #182360-000

Replaced by #100109598

?
Manufacturer substitution
This part replaces 182360-000. Substitute parts can look different from the original.
$22.86
In Stock
Box Cover 184660-000
#20

Cabinet parts diagram

Box cover

Part #184660-000

Replaced by #184660-000

?
Manufacturer substitution
This part replaces 184660-000. Substitute parts can look different from the original.
$17.99
In Stock
Thermostat 182359-000
#16

Cabinet parts diagram

Thermostat

Part #182359-000

Replaced by #100110039

?
Manufacturer substitution
This part replaces 182359-000. Substitute parts can look different from the original.
$28.89
In Stock
Temperature Valve 043151-000
#10

Cabinet parts diagram

Temperature valve

Part #043151-000

The manufacturer no longer makes this part, and there's no substitute part

Terminal Cover 182117-001
#15

Cabinet parts diagram

Terminal cover

Part #182117-001

Replaced by #100110879

?
Manufacturer substitution
This part replaces 182117-001. Substitute parts can look different from the original.
$21.43
In Stock

Most common symptoms to help you fix your water heaters

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Why isn't my water heater heating my water?

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

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Why is my water heater's pressure relief valve dripping water?

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Why isn't my water heater making the water hot enough?

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

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Repair guides for electric water heaters

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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…

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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…

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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…

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Repair difficulty
Time required
 30 minutes or less

Effective articles & videos to help repair your water heaters

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How to read a wiring schematic video

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

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Easy DIY water heater repairs

Easy DIY water heater repairs

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Water heater common questions

Water heater common questions

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

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