Model # 81KR52 Official Rheem 50-gallon power miser viii electric water heater

Here are the diagrams and repair parts for Official Rheem 81KR52 50-gallon power miser viii electric water heater, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

Click a diagram to see the parts shown on that diagram.
In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Error Codes

Model diagram and schematic

SEARCH WITHIN THIS MODEL

ALL PARTS

Showing 10 of 16 parts |

#10

Functional replacement parts diagram

Gasket

Part #AP-6708

Replaced by #SP6708

$13.31

In Stock

Qty

Functional replacement parts diagram

Thermostat

Part #AP-10161

Replaced by #SP11698

$43.03 |

12% OFF Phone Price : $49.03

In Stock

Qty

Functional replacement parts diagram

Anode rod

Part #AS-36255A-BD

Replaced by #SP11526C

$60.14 |

9% OFF Phone Price : $66.14

In Stock

Qty

#15

Functional replacement parts diagram

Drain valve

Part #AP-10424-C

Replaced by #100108605

$27.78

In Stock

Qty

Functional replacement parts diagram

Cover plate

Part #AS-29892

Replaced by #AM29892

$20.60

In Stock

Qty

Functional replacement parts diagram

Box cover

Part #AS-29893

Replaced by #AM29893

$18.77

In Stock

Qty

Functional replacement parts diagram

Jacket access panel

Part #AS-25240(CB)

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

#NI

All parts diagram

Owners manual f642-3091

Part #AP-10826

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

#16

Functional replacement parts diagram

Shroud valve

Part #AP-2480

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

#13

Functional replacement parts diagram

Thermostat

Part #AP-10158

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.

View all

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 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's pressure relief valve dripping water?

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

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 my water heater making the water too hot?

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

Repair guides for electric water heaters

View all

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

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

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.

View all

Model # 81KR52 Official Rheem 50-gallon power miser viii electric water heater

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Most common symptoms to help you fix your water heaters

Why isn't my water heater heating my water?

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

Why does my hot water smell like rotten eggs?

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

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

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

Why is my water heater making the water too hot?

Repair guides for electric water heaters

How to replace a water heater element

How to replace an electric water heater anode rod

How to replace an electric water heater thermostat

Effective articles & videos to help repair your water heaters

How to read a wiring schematic video

Easy DIY water heater repairs

Water heater common questions

Parts & More

Stay Connected

Quick links

Let us help you

More resources