AO Smith
Electric Water Heater

Model # EG-1250R55DV210 Official AO Smith water heater

Here are the diagrams and repair parts for Official AO Smith EG-1250R55DV210 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 15 parts  |

Ao Smith K,bracket,thermostat,mounting 100109597
#13

Water heater diagram

Ao smith k,bracket,thermostat,mounting

Part #100109597

In Stock
Ao Smith Water Heater Thermistor (replaces 100072102, 6911177) 100263932
#11

Water heater diagram

Ao smith water heater thermistor (replaces 100072102, 6911177)

Part #100263932

$34.33
15% OFF Phone Price : $40.33
In Stock
American Water Heaters Water Heater Control Panel Assembly (replaces 100263931, 6911176) 100309395
#17

Water heater diagram

American water heaters water heater control panel assembly (replaces 100263931, 6911176)

Part #100309395

$95.71
11% OFF Phone Price : $107.71
In Stock
K,diptube,.65x40.5,ce,5x3/4npt 100270743
#6

Water heater diagram

K,diptube,.65x40.5,ce,5x3/4npt

Part #100270743

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

K,wire Harness,smart Grid 100094015
#9

Water heater diagram

K,wire harness,smart grid

Part #100094015

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

K,anode,32,3/4npt,.84dia,magnesium 100108660
#5

Water heater diagram

K,anode,32,3/4npt,.84dia,magnesium

Part #100108660

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

K,harness,wire,internal Replacement 100310282
#12

Water heater diagram

K,harness,wire,internal replacement

Part #100310282

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

K,t&p Valve,3/4m,2.5cav,210f,150psi 100108600
#3

Water heater diagram

K,t&p valve,3/4m,2.5cav,210f,150psi

Part #100108600

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

K,heating Element,5500w,240v,15,inc 100210053
#14

Water heater diagram

K,heating element,5500w,240v,15,inc

Part #100210053

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

K,drain Valve,3/4x3,childproof 100158121
#4

Water heater diagram

K,drain valve,3/4x3,childproof

Part #100158121

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

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.…