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

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How do I determine the age of my unit?It is a Rheem model # 81v-52d

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  • Andrew H. Eliason
    Andrew H. Eliason Dec 31, 2011

    If the lable is intact there may be a Mfr. Date to the right of the model and serial numbers. I know that sounds too obvious but it could be overlooked.



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My 50 gal heater puts out only 20 gal of hot water

Posted on Feb 10, 2010


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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How to determine the length of a rheem water heater ?

Do you mean size?... height, width, and diameter of a specific model?
Or do you mean the length of warranty coverage. You will need serial number located on label on side of tank.
Or do you mean age of water heater?

Suggest contacting


Aug 27, 2014 | Water Heaters

1 Answer

Rheem 81V-400 water heater/VERY SLOW HOT WATER !

Could be a number of things. The first thing to do is to verify that you are getting 240 volts at the upper thermostat, and right on the element terminals. Let me know if you do, and we'll go from there.

Dec 01, 2012 | Water Heaters

1 Answer

Drain valve plastic slow leak 81V-80D

If the drip is coming out of drain valve: Put a hose cap over end of drain valve.
If water is seeping out of cracked drain vale, then replace it.
If the leak is seeping around previously sealed threads, then tank may be rusted beyond repair.

Oct 06, 2012 | RHEEM 30 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

How do I determine the age of my unit? it is a Rheem water heater model 81V-80D

call plumbing supply house with serial #, & model #of your tank. give them the info and if they handle the brand of your tank , they should be able to help.

Dec 27, 2011 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

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When was the Rheem serial no R 1092825412- Model # 81V-40D A made

Year should be 3rd and 4th digits.
So 1092 should be 10th month (November) 92 (1992)

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Oct 02, 2011 | Water Heaters

3 Answers

My rheem 50 gal water heater model 81mv52d keeps tripping the breaker, what do i need to do to stop this

Check all wiring at water heater and possible upper thermostat is bad, and in need of replacement.

Aug 15, 2011 | Rheem 50 GAL ELEC TALL Water Heater 6YR SC...

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What is the Date of Manufacture on a Rheem Model # 81V-40D Serial #0390B10720

manufacture date should be May of 2007 --- give or take a week or so.


Dec 29, 2010 | Rheem Water Heaters

1 Answer

Not enough hot water

Makes you feel good to save some money right? Have a great day!

Apr 09, 2009 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

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