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New rheem water heater only gives about 5 minutes of luke warm water.checked the elements with ohm meter all ok.tstats ok.

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Given that both elements are in working order, and the unit was filled before the elements were powered up. Here are a few other areas to troubleshoot.

Note: Electric water heaters contain high voltage, so care and safety must be employed when attempting any service or repair. Do not attempt any service, if you are not secure in your abilities.
Quality non-conductive gloves and eye protection should be worn.

First check that power is being supplied to each thermostat and then to the element when the thermostat is active. Make final temperature adjustments evenly, so as to not over work one element.

Next, check that trapped air is purged from the tank, by placing a catch pan under the TPRV (temperature and pressure relief valve) and quickly engaging it to see if air escapes, if it does then continue until only water is released.

Finally check to be sure that during installation, the cold water feed and the hot water supply lines were installed to their proper locations at top of tank.


Good luck...Let me know the results of your tests.

Posted on Feb 25, 2009

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I have a power star ae115 electric tankless water heater. It has performed flawlessly for approximately 5 years. A couple weeks ago it stopped producing HOT water but is still heating to Luke warm. The "...


5 years is about the lifespan for tankless.
You might have shorted element. That would explain cooler water and tripping reset.
Test element: power is off, disconnect wires from element; ohms = voltage squared divided by watt rating of element
http://waterheatertimer.org/How-to-test-water-heater-element.html

Call service technician./ Call Bosch
http://waterheatertimer.org/pdf/Bosch-AE115-AE125_manual.pdf

Gene

Oct 14, 2014 | Water Heaters

1 Answer

Over heats and shuts off


The top thermostat controls your water heater meaning if it is not working you wont have any hot water. If the top t-stat needs to be reset by pushing button in then check the element with POWER OFF and remove wires from element. check ohms should be around 12 to 19 ohms. If ok then reconnect wires and check amps. turn on power and use clamp on meter for amps. 15 to 20 amps should be ok. if not drain heater and pull out element. while you are at it drain all the water and pull lower element. if replaced and you have some hot water then quickly cool or cold then you have a broken dip tube located under the cold side of the supply line. they are cheap and easy to replace. I hope this helps.

Apr 19, 2014 | Rheem Water Heaters

1 Answer

I have a 85 gal rheem water heater-one of the heating elements is not working how do i find out which one it is


Get a volt/ohm meter. Turn the power off to the water heater. Take the wire off both elements. Check for continuity using the ohm part of the meter. Put red lead where one wire was and black lead where the other wire was on same element. Meter should move when you attach leads. If the meter does not move that is the element that is bad.

Jan 05, 2012 | Water Heaters

1 Answer

Rheem electric water heater 50 gallon, lukewarm water. Water is warm but not hot, where should we look for problem?


Luke warm water is the result of top element bad and the bottom is the only one heater. The best solution I can reccomend is to change both out due to the fact the bottom element may go bad and since you have to change one you might as well change both.

Turn power and water off, drain heater down and once water is drained out change them out. Once new ones installed turn water on to fill heater and open faucets and get air out on the hot side of each faucet once water is flowing out of each faucet you are now ready to turn power back on.

Oct 12, 2011 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

HOT WATER LAST NIGHT BUT LUKE WARM THIS EVENING? IS IT AN ELEMENT:


I assume you have electric water heater.
If tank has 2 elements, then it is 240V
If you have Rheem, then elements are 4500 watt.
Check label on side of tank for particulars.
Rheem: second two digits on serial number correspond to year of manufacture.

Ordinary tank type water heater is fully repairable by homeowner using generic parts from hardware or home center.

If you have some hot water, then that says several things:
-Upper element is working.
-Electricity from circuit breaker to upper thermostat is good.
-ECO reset button is not tripped.
-You do not have overheating event.
-Access doors and insulation are in place and thermostat not exposed to cool temperature.

That leaves following suspects:
1) Check if TP valve is stuck open and running all your hot water down a drain.
http://waterheatertimer.org/How-to-replace-TP-valve.html

2) Upper or lower thermostat is bad.
Replace both thermostats for $28
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

3) Lower element is bad -and- maybe tank has built-up sediment
http://waterheatertimer.org/How-to-test-water-heater-element.html
http://waterheatertimer.org/How-to-replace-water-heater-element.html

4) Wire is loose inside tank. Open covers and inspect. Tighten screws very tight against copper wire.

5) Bad wire between upper and lower sections of tank.
Do complete 30 minute troubleshoot before replacing any parts.
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

Add a comment for more free help.
Also take advantage of fixya phone service.
For a price, fixya expert speaks with you over phone while you work on water heater.
We are always less expensive than a service call.

Jan 14, 2011 | Rheem Water Heaters

1 Answer

I have a Rheem Fury 40 gallon tank. I have hot water for about 10 minutes then it turns to luke warm. The unit is about 8 years old, should i just replace?


Sound slike the top element is gone bad and the bottom one is the only one working. Best bet to change out both elements while you have to replace one anyway , turn power off, drain water out and change out. Once you are done open a faucet to get air out of lines when you turn water back on, Once air is out of lines you now can turn power back on.

Jan 10, 2011 | Rheem 40 Gallon FVR NATGAS Low WATER...

1 Answer

Hot water for only 5 to tn minutes then have to wait.


You have an element gone of your hot water is running out quick and having to wait for it to heat up again. Best thing to do is to go ahead and replace both of them.
If you replace just one it will work the old one till it causes it to go. Most of the time if the top element is good you will get a blast of hot water and then it will get cold. With the bottom element only working it will be luke warm water for a while then go cold.
If you need a guide how to replace them got to the link below for further information. It will guide you through trouble shooting your heater.

http://www.water-heater-repair-guide.com/waterheaterelementreplacement.html

Jun 24, 2010 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

50 gallon electric heater not working after about 5 minutes in the shower the water gets cold and the rest of the house i do have 240 going to water heater thermostats goood element good


Some elements will read with a meter good until they heat up.

Hot water then going to ice cold top element is working and bottom bad. Luke warm water and then goes cold bottom element good and top element bad.

Elements and thermostats are not to exspensive to replace.

If you have power only two thing's left are the thermostat's and the elements.

May 21, 2010 | Water Heaters

1 Answer

The heat control valve appears to have stuck, the water is only luke warm


I do not know what heat control valve you are referring to on an electric water heater. On an electric water heater it has two heating elements in most cases. One at the top and one on the bottom. One of these is more than likely defective. Turn the power to the water heater off at the service panel or at a disconnect switch. Now take the covers off both heating elements. Check each one with a ohm meter to see if you have continuity. If your meter reads nothing that heating element is bad and needs replacing. On each heating element is a thermostat to set the temperature. Set the upper element to 120 degrees and the lower element to 130 degrees.

Jan 05, 2010 | Rheem 80 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...

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