#NI
All parts diagram
Anode rod
Part #N/P
The manufacturer no longer makes this part, and there's no substitute part
#NI
All parts diagram
Owner's manual
Part #AP-10227
The manufacturer no longer makes this part, and there's no substitute part
Model # 81VP20S Official Rheem electric water heater
Here are the diagrams and repair parts for Official Rheem 81VP20S electric 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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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: thermostats need adjustment, water heater capacity too low, bad heating element, thermostat failure, excess…
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: thermostat temperature set too high, thermostats need adjustment, faulty thermostat, shorted heating elemen…
Main causes: faulty pressure relief valve, water is overheating…
Repair guides for electric water heaters
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
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
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.
Learn some of the most common symbols found in a wiring diagram and what they mean.…
Find out what’s wrong with your appliance by following a circuit.…
Read about some water heater repairs that you can easily do yourself.…