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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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Owner’s manual

Model diagram and schematic

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Showing 10 of 15 parts |

Ao Smith K,bracket,thermostat,mounting 100109597

Water heater diagram

Ao smith k,bracket,thermostat,mounting

Part #100109597

$27.78

In Stock

Qty

Ao Smith Water Heater Thermistor (replaces 100072102, 6911177) 100263932

Water heater diagram

Ao smith water heater thermistor (replaces 100072102, 6911177)

Part #100263932

$33.33 |

15% OFF Phone Price : $39.33

In Stock

Qty

Ao Smith Water Heater Control Panel Assembly (replaces 100263931, 6911176) 100309395

Water heater diagram

Ao smith water heater control panel assembly (replaces 100263931, 6911176)

Part #100309395

$96.86 |

11% OFF Phone Price : $108.86

In Stock

Qty

K,diptube,.65x40.5,ce,5x3/4npt 100270743

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

Water heater diagram

K,wire harness,smart grid

Part #100094015

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

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

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,drain Valve,3/4x3,childproof 100158121

Water heater diagram

K,drain valve,3/4x3,childproof

Part #100158121

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

K,harness,wire,internal Replacement 100310282

Water heater diagram

K,harness,wire,internal replacement

Part #100310282

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

K,thermostat,pcb Assy,universal Et 100309396

Water heater diagram

K,thermostat,pcb assy,universal et

Part #100309396

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

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

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

Most common symptoms to help you fix your water heaters

Choose a symptom to see related water heater repairs.

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…

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…

Why is there water in my water heater's drain pan?

Main causes: loose water pipe fittings, leaky drain valve, bad temperature-pressure relief valve, leaky heating element,…

Why does my hot water smell like rotten eggs?

Main causes: water supply needs chlorine treatment, anode rod too reactive…

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

Main causes: broken heating element, thermostat failure, excessive tank sediment, tank size too small, burner valve asse…

Why is my water heater making the water too hot?

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

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

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.…

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