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

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No hot water at all but power to all elements and to thermostats is there a dip tube in the rheem model 71-40D

Posted by chrisandl122 on

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Anonymous

Water heater can test for 120V power on elements and thermostats at all times.
That's because thermostats turn off one leg of 240Volt circuit, and not both legs.
You mentioned thermostats and elements, implying two elements and two thermostats, so your water heater is 240Volt.
240Volt breaker might be bad on one leg.
Open following links to troubleshoot
http://waterheatertimer.org/Test-electricity-to-water-heater.html
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

Yes the water heater has a dip tube.
http://waterheatertimer.org/How-it-works.html

Posted on Jul 10, 2011

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Heating coils were replaced last december and today no hot water for a shower after 5 minutes in the shower. The electric is flying on the meter. Have shut off the circuit breaker for this hot water


Copy following link for tank-type electric water heater troubleshoot:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html#skyrocket

Press reset button located on upper thermostat.
Test elements for short to ground against steel tank.
Clean sediment out of tank. Check for water leak running hot water out of tank.
Replace both thermostats.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Nov 25, 2012 | Rheem Water Heaters

1 Answer

Got 5 minutes of hot water then cold. replaced both elements and thermos. still 5 minutes of hot water. power bill increased nearly 400% in 30 days. HELP!!! please.


When the top of the tank is hot the upper thermostat removes power from the upper heating element and transfers the power to the lower thermostat and heating element. If the lower thermostat is defective, then the lower portion of the tank will not be heated and the supply will be greatly reduced. You replaced both elements however check that the lower element is coming on after ther upper one cuts out and is acutally working.
Check for power at the upper thermostat terminals where the power is sent to the lower thermostat and heating element. If there is no power then the upper thermostat should be replaced. If there is power then check for power at the lower heating element. If there is no power at the lower heating element then replace the lower thermostat.
If there is power to the lower heating element then it should be getting hot. If it is not, maybe defective. Another possibility is a broken dip tube. Check for a broken dip tube and replace if necessary.

If the dip tube is broken, the incoming cold liquid can mix with the out going hot liquid and cause it to seem as though you are running out.

Nov 04, 2011 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

Hi...I have a Whirlpool water heater and the water only stays hot for a few minutes. How do I adjust the temperature or settings so that I can have hot water all the way through the shower instead of...


I am guessing this is an ele water heater and the temp setting are not the problem.
Problem: Not enough hot water or water temperature too low. When the top of the tank is hot the upper thermostat removes power from the upper heating element and transfers the power to the lower thermostat and heating element. If the lower thermostat is defective, then the lower portion of the tank will not be heated and the supply will be greatly reduced.
Check for power at the upper thermostat terminals where the power is sent to the lower thermostat and heating element. If there is no power then the upper thermostat should be replaced. If there is power then check for power at the lower heating element. If there is no power at the lower heating element then replace the lower thermostat.
If there is power to the lower heating element then it should be getting hot. If it is not, replace it. Another possibility is a broken dip tube. Check for a broken dip tube and replace if necessary.

The dip tub is located under the fitting where the hot water comes out.

Feb 03, 2011 | Whirlpool Water Heaters

1 Answer

What is the energy factor for the mod.82V80-2? I have two seperate 30amp circuits, one for the top element and one for the bottom element, if that changes anything.


http://www.rheem.com/product.aspx?id=09DF2BDD-5E11-4D32-B574-84ACFB8A4619
http://globalimageserver.com/fetchDocument.aspx?id=052c9e32-ce37-48d7-8990-9e430f23fef3

82V80-2 Energy factor is .86 according to water heater industry self-regulated standards.

Rheem pdf says these water heaters are wired for non-simultaneous operation.
Except special order water heaters.
Non-simultaneous operation uses single 240V circuit as described below.
If your water heater is wired for simultaneous operation, and each element is on a separate circuit, that makes your water heater special order. I would guess the reason is for higher first-hour delivery, which implies rapid heating and would likely affect energy factor.
You might want to get serial number off model and call Rheem for specs on that special order.

Your water heater energy factor may be the same because 'energy efficiency is based on the amount of hot water produced per unit of fuel consumed over a typical day.' This means an aircraft carrier can be considered highly efficient despite overall cost. And naturally the guys making the aircraft carrier are also doing the rating.
http://www.energysavers.gov/your_home/water_heating/index.cfm/mytopic=13000

Non simultaneous operation means the upper thermostat controls heating functions.
240V goes to upper thermostat first.
When water inside tank is cold, thermostat reads temperature through tank wall.
Upper thermostat turns on upper element until top 2/3 of tank reaches thermostat set point.
Once set point is reached, upper thermostat turns off upper element and sends power to lower thermostat and lower element.
Lower thermostat reads temperature through tank wall, and turns on lower element until bottom 1/3 of tank reaches thermostat set point.
As water cools inside tank, lower thermostat is first to respond since hot water rises.
Lower thermostat turns on lower element until tank again reaches set point.
When hot water faucet is turned on, hot water exits top of tank.
At same time, cold water enters bottom of tank through the dip tube.
The heating cycle repeats.
At all times, the electricity flows through upper thermostat. And upper thermostat is powered by one 240V circuit.

With simultaneous operation, the upper and lower thermostats work in same manner.
Except thermostats are wired separately.
Lower thermostat does not wait for upper part of tank to be heated first.
Lower thermostat turns on whenever lower part of tank cools.
The advantage is more hot water available rapidly when demand is high. This is called first hour recovery.

One method for reducing electric consumption is to set lower thermostat so it only turns on during certain times of day. For example Whirlpool Energy Smart operates in this manner and shaves a few bucks off the bill each month. This says that simultaneous operation is not an energy saver, unless that circuit controlling lower thermostat is set on a timer.

Dec 06, 2010 | Rheem 80 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

I have a rheem model 81V800 A that isnt heating the amount of water it used to...seems like half..any sujestions?


Depending on the age and water hardness in your area, sediment buildup is the most likely cause of this issue. Other problem that you may run into are:
One burnt out heating element.
A bad thermostat.
A broken dip tube.
The heater is running on half power.
To run a maintenance check on your Rheem water heater you will need a voltmeter and a 4-way screwdriver.
Follow the testing procedure in this link.

Sep 12, 2010 | Rheem 80 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

I have hot water for a minute then it goes to warm. I took off the 2 wires on each element and I have 15 ohms on the top and 5.5 on the bottom. Is my bottom element bad?


Sounds like bottom element may be bad but usually reads open circuit if bad. Also tan k would run about 8 gallons hot water then go cold. lots of warm water usually means bad dip tube.
Check if tank is hot at bottom element when not used for a while. If bottom element is still cold then bad element.
If bottom element is hot - (all water in tank is hot then you have a bad "dip tube" This is allowing incoming cold water to mix with outgoing hot water. The dip tube is usually A part of the cold water nipple or B located under the cold water inlet nipple.

Jan 18, 2010 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

The water coming out of my faucets, washing machine, shower, etc. is not getting hot.


Your heater is on? Do you regularly drain off sediment?

Have you contunity tested your elements (power off)? Volt tested the same (power on)?

Has anyone fooled with the thermostat?

There is the possibility the dip tube (cold water going in) has broken off and instead of sending the cold water to the bottom, the cold goes straight from the cold water entrance pipe to the hot water exit pipe. Normally, one would expect cold water to sink and hot water to be on the top but, when you are drawing water off the top, with a broken dip tube, the water travels the shortest distance required, thus, your luke warm water.

I hope you can find your trouble by following one of these hints.

Thanks

a

Oct 18, 2009 | Rheem 80 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

Dip Tube


You may want to check the heating elements first. Where I live there is a lot of lime in the water that can coat the elements.

May 01, 2009 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

2 Answers

Water is no longer hot


A heating element is either good or bad and no inbetween. If your unit has two elements, then one of the elements is bad. If it is a single element unit then the thermostat has gone bad. Do a voltage check to see if you have power going to both elements and if you do then do a ohms test on the elements. They shoudl read 5 to 10 ohms. If one of them doens't, then you know it is bad. If by chance check the elements and everything is working, the only thing that can be left is that the dip tub has ruptured somewhere close to the top of the outlet. But I would put my money on a bad element.

Apr 07, 2009 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

Limited hot water output


are both heating element getting electricity?  Are they both good?  Are the temp settings on both the same?

Mar 15, 2009 | Rheem 50 Gallon FVR NATGAS Water Heater...

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