Question about Rheem 40 GAL ELEC TALL Water Heater 6YR SC 82VH402

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I need to adjust water temperature, and dont have a manual. i have a 81v40d C model , 40 gal electric.

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Hi,

Here is a tip that I wrote to help people understand how to adjust the temperature on their electric hot water heater.

Electric Hot Water Heater Temperature Adjustment
heatman101

Posted on Oct 16, 2010

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  • 2 Answers

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Posted on Jan 02, 2017

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1 Answer

How to change temperature setting


Link below shows step-by-step for typical tank-type gas and electric water heaters
http://waterheatertimer.org/How-to-adjust-water-heater-temperature.html

If water heater used to be hotter, look at diagrams following link:
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html

Other water heater tips and tricks:
http://waterheatertimer.org/Replace-anode-rod.html
http://waterheatertimer.org/9-ways-to-save-with-water-heater.html

If you have tankless water heater, consult manual.
Changing temperature on tankless can lead to problems.
Tankless should be de-limed each year to maintain efficiency. U-tube search 'delime tankless'
Read the manual for yearly maintenance requirement.
All costs are energy, and tankless are maintenance heavy.

Mar 08, 2011 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

Rhow do I change water temperature? currently too low


Open following link and see common thermostat adjustments:
http://waterheatertimer.org/How-to-adjust-water-heater-temperature.html

If your water heater doesn't show, then add a comment with brand, type and model number and I'll try to locate specific information.

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, expert speaks with you over phone while you work on timer or any do-it-yourself project.
Fixya is always less expensive than a service call.

Feb 03, 2011 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

What years were the Rheem 81v40d produced?


You can find age of water heater from serial number located on label on side of tank.
Label also shows tank size, and tank wattage and element wattage

http://waterheatertimer.org/Figure-Volts-Amps-Watts-for-water-heater.html
http://waterheatertimer.org/Water-at-bottom-of-water-heater.html

Serial number decoder:
http://waterheatertimer.org/pdf/WaterHeaterSerialNumberDecoder.pdf
For example Rheem serial number 0790...
First 2 digits are month 07 July
Next two digits are year 1990

Rheem site does not show 81v40d
http://www.rheem.com/products/tank_water_heaters/electric_water_heaters/

Dec 26, 2010 | Rheem 65 GAL ELEC Water Heater 6YR Self...

1 Answer

Where is the thermostat


Hi,

Here is a tip where I explain how to adjust the thermostat... it also will show you where they are...

Electric Hot Water Heater Temperature Adjustment
heatman101

Nov 09, 2010 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

I have a new Atwood 6-gal propane water heater (still under warranty). It works fine except that when warm water is flowing, the burner will start heating only after the water gets quite lukewarm. Can one...


If it's manual light, then only dial or lever on gas control is adjustable, and you can try turning it up a little at a time. It will increase water temperature so be careful, but that should also make it kick back in sooner as well. If it's electronic ignition, there is 2 or 3 heat settings available in thermostats ( little disc behind foam cover under pressure relief valve) . Obviously on those, if you choose higher temperature, it cuts back in sooner as well. If you have electric element, they have a thermostat on rear of water heater as well, behind electrical connection box. If your not 100% sure what I'm saying here, get back with model number of heater inside cover and I'll tell you your options. Please remember to be careful of scalding when you turn up the temperature.

Oct 20, 2010 | RTO Atwood Water Heater - 6 Gal LP

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