Question about Heating & Cooling

1 Answer

Lower hot water element burns out

Electric bill has doubled

Posted by on

  • Dale Koehn
    Dale Koehn May 11, 2010

    what type of unit is this ? water heater ? furnace ?

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

    Champion:

    An expert who has answered 200 questions.

  • Expert
  • 230 Answers

Assuming that this is a water heater I will suggest that the unit is filled with sludge(mineral deposits etc) in the bottom of the tank. This will commonly cause element failures. Try flushing the system and installing a new element. Good luck!

Posted on Jan 28, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

New water heater will not heat


Water heater has to be full of water before power is turned on or elements will burn out.
If upper element is burned out, then no hot water.
Lower element burned out, not much hot water.
If tank has 2 elements, it is 240V. Water heater circuit may not be delivering 240V. Test for 240V at connections.

Open following link for troubleshooting electric water heater.
http://waterheatertimer.org/How-to-troubleshoot-electric-water-heater.html
http://waterheatertimer.org/How-to-test-water-heater-element.html
http://waterheatertimer.org/Test-electricity-to-water-heater.html

Add a comment with your experience so others with same-similar problem can benefit.

Also take advantage of fixya expert assistance live.
For a price, expert works with you while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

Apr 09, 2011 | Reliance & 50gal Electric Water Heater

1 Answer

Water heater does not produce as much hot water as it use to. Could it be, that one of the heating coils is out. If so is ther a reset switch? Before I have someone check the coils.


Ordinary tank-type electric water heaters are fully repairable by homeowner.

A) Rheem electric water heater website:
http://www.rheem.com/products/tank_water_heaters/electric_water_heaters/
Find age of Rheem: look 3rd and 4th digit of serial number, for example 06 is 2006

B) Water heater has some hot water.
That says certain things: upper element is working, water heater electricity is working, reset button is not tripped, and heater is not experiencing run-away overheating event.
http://waterheatertimer.org/How-it-works.html

C) That leaves 4 suspects.

1) TP valve is running hot water out of tank, or leaking faucet is running hot water out of tank.
Check for leaks
http://waterheatertimer.org/How-to-replace-TP-valve.html

2) Lower element is burned out.
Test lower element using inexpensive multi-meter from Home Depot.
http://waterheatertimer.org/How-to-test-water-heater-element.html
Replace element with same wattage shown on label, and clean out sediment:
http://waterheatertimer.org/How-to-clean-sediment-out-of-electric-water-heater.html
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html

2) Upper or lower thermostat is bad.
Replace both thermostats for about $25.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

3) Burned or shorted wire located between upper and lower sections of tank.
Turn off power. Open covers on side of tank. Remove insulation. Inspect parts for signs of high heat and burning. Especially check lower element. Tighten any loose wires. Replace part that shows signs of burning.
Put insulation and cover back over thermostats so cooler outside temperature doesn't cause thermostat to misread tank temperature.
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, expert speaks with you over phone while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

Feb 11, 2011 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

Rheem 49 gal model 81V400B - hot water lasting only 5-10 minutes then takes an hour to heat back up.


Ordinary tank-type electric water heaters are fully repairable by homeowner.

A) Basic info on Rheem
Rheem electric water heater website:
http://www.rheem.com/products/tank_water_heaters/electric_water_heaters/
Find age of Rheem: look 2nd and 3rd digit of serial number, for example 06 is 2006

B) Water heater has some hot water.
That says certain things: upper element is working, water heater electricity is working, reset button is not tripped, and heater is not experiencing run-away overheating event.
http://waterheatertimer.org/How-it-works.html

C) That leaves 4 suspects that cause lower amount of hot water.

1) TP valve is running hot water out of tank -or- leaking faucet is running hot water out of tank.
Check for leaks
http://waterheatertimer.org/How-to-replace-TP-valve.html

2) Lower element is burned out.
Test lower element using inexpensive multi-meter from Home Depot.
http://waterheatertimer.org/How-to-test-water-heater-element.html
Replace element with same wattage shown on label, and clean out sediment:
http://waterheatertimer.org/How-to-clean-sediment-out-of-electric-water-heater.html
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html

2) Upper or lower thermostat is bad.
Replace both thermostats for about $25.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

3) Burned or shorted wire located between upper and lower sections of tank.
Turn off power. Open covers on side of tank. Remove insulation. Inspect parts for signs of high heat and burning. Especially check lower element. Tighten any loose wires. Replace part that shows signs of burning.
Put insulation and cover back over thermostats so cooler outside temperature doesn't cause thermostat to misread tank temperature.
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, expert speaks with you over phone while you work on water heater 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

We just recently replaced both heating elements in our water heater. Now the water is just barely getting warm and not hot. What's wrong??


Electric water heater if fully repairable by homeowner:

A] First of all, we know your upper element is working because you have some hot water:
http://waterheatertimer.org/How-it-works.html
That says tank is not overheating.
It says tank is getting 240Volts.
It we know water heater is 240Volts because you have 2 elements.
And it says reset button is not tripped.

B] That leaves 4 suspects:
Suspect 1) Bad Upper thermostat or Bad Lower thermostat: solution replace both thermostats for about 25$. Steps shown in link below.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
Suspect 2) Burned out Lower element: solution take out element, clean sediment out of tank, put in new element. Steps shown in link below
http://waterheatertimer.org/How-to-clean-sediment-out-of-electric-water-heater.html
Suspect 3) Loose wire or connection: solution open covers and remove insulation and look for signs of burning and high heat. Tighten all screws very tight. Replace burned part. Put insulation and covers back over thermostat so thermostat not exposed to cool air which will cause thermostat to misread tank temperature.

C] Before replacing anything, you can test water heater parts and determine exact cause of problem. Testing requires $5 multimeter from Lowes or Home Depot:
Install battery in multimeter.
When test calls for testing voltage, rotate multimeter dial to 240 or 250 or 277 Volts.
When test calls for testing continuity, rotate multimeter dial to ohms (upside down horseshoe symbol is ohms)
http://waterheatertimer.org/How-to-troubleshoot-electric-water-heater.html
After doing 30 minutes of testing, you will be expert in water heaters.

D] You replaced elements for a reason
.
Did you test elements before replacing?
Was tank producing some hot water before you replaced elements?
If tank producing some hot water, then lower element was bad, and upper element was good.

And when you replaced lower element, did you also clean sediment out of tank?

If sediment builds up inside tank, it will reach lower element and burn out the element.
That could have been original problem, and it could be same problem again.
Restore full efficiency to tank by cleaning out sediment and replacing lower element.
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html

E} More reading to preserve tank and save money long term
http://waterheatertimer.org/Replace-anode-rod.html
http://waterheatertimer.org/9-ways-to-save-with-water-heater.html

Dec 10, 2010 | Rheem Water Heaters

2 Answers

Hot water runs out in 5 minutes it use to last 20minutes


Electric water heater can be repaired by homeowner.

Water heater has some hot water.
We know 3 things for sure:
- electricity is ok
- upper element is ok
- tank does not have overheating problem

Here are the suspects:
- Burned or loose wire
- Upper thermostat not working
- Lower thermostat not working
- Lower element not working

What to do:
1) Turn off power, open water heater covers and look for signs of burned or loose wire, especially on lower element. Burned wire on lower element says lower element is burned out.

2) Test lower element.
Lower elements burn out when sediment builds up inside tank.
http://waterheatertimer.org/How-to-test-water-heater-element.html
http://waterheatertimer.org/How-to-replace-water-heater-element.html

3) If wires are ok. And you do not want to test parts, then replace upper and lower thermostat for 25$. If problem persists, replace lower element.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

4) If you want to test thermostats and elements before replacing anything:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

5) When finished, be sure to put insulation and covers back on tank so thermostats don't receive cool air and misread tank temperature. This will prevent overheating of tank that causes red reset button to trip.

geno_3245_101.jpg

Nov 23, 2010 | RELIANCE ELECTRIC WATER HEATER

1 Answer

Water is not hot, doesn't last long. Thermostats turn elements on when turned up. Elements show 230 when on.


Lower element can be burned out and still read 230V across screws

1) We know thermostats are working because elements test 230V.
2) We know upper element is working because tank has some hot water.
If upper element is burned out, tank will have no hot water.
http://waterheatertimer.org/How-it-works.html

3) Here's how to test lower element:
http://waterheatertimer.org/How-to-test-water-heater-element.html

4)Here's how to replace element
Rheem element is 4500Watt bolt-in type
http://waterheatertimer.org/How-to-clean-sediment-out-of-electric-water-heater.html

5) Rheem manual says: Heaters furnished with standard 240 volt AC, single phase non-simultaneous wiring, and 4500 watt upper and lower heating elements.
http://waterheatertimer.org/pdf/Rheem-spec-sheet.pdf

geno_3245_94.jpgRheem 4500Watt element

Nov 21, 2010 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

I have a Reliance 501 water heater, when I take a shower now I only get about 5 min. of hot water is there something on the heater I have to reset? Thnx Mike


Electric water heater is fully repairable by homeowner.
Following information will tell you how.

1) Background on your heater:
Reliance is AO Smith company.
http://www.aosmith.com/OperatingUnits/Detail.aspx?id=138&ekmensel=c580fa7b_12_0_138_3

Age of water heater is shown in serial number. First character is letter. Second 2 characters are numbers, which are year of manufacture. For example 05 is year 2005.

The 501 manual is not shown on Reliance website:
http://www.reliancewaterheaters.com/prod/elec.html

2) Two things known for sure:
- electricity is OK
- upper element is working because there is some hot water.

3) Three things can cause problem you describe:
- Loose wire located from upper thermostat to lower element and thermostat.
- Upper or lower thermostat is bad
- Lower element is burned out

4) How to troubleshoot and repair
- Turn off power, open covers and look for loose and burned wiring, especially on lower element.
- When finished, put back insulation and covers so thermostat not exposed to cooler temperatures.
- Burned wire on lower element is evidence that lower element is burned out.

- If you do not want to follow testing steps below, next step is to replace both upper and lower thermostat for about 25$ and see if problem persists.
- If problem persists, replace lower element.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

5) Test lower element, before replacing anything
http://waterheatertimer.org/How-to-test-water-heater-element.html

6) Troubleshoot electric water heater
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

7) How to replace lower element and clean sediment out of tank:
http://waterheatertimer.org/How-to-clean-sediment-out-of-electric-water-heater.html

Nov 17, 2010 | Reliance Water Heater #6-50-DJRT 50GAL...

1 Answer

Hot water runs out after one shower


You say the hot water runs out after one shower.
You posted under electric heater.

In case you have a gas heater:
With gas heater
, the flame quality could be bad because of restricted air flow or dirty burner, the control valve and thermostat could be bad, the air intake could be clogged, or the water heater is full of sediment and the flame is burning all the time and unable to heat much water.

With electric heater, the lower element is probably burned out and bottom filled with sediment, but thermostats could be bad, or you could have shorted wire.

Narrow down the suspects
If water heater makes some hot water then upper element is working.

Three remaining suspects are upper thermostat, lower thermostat, lower element, and possibly a loose wire

Check screw terminals for signs of burning and loose wires. Especially check lower element.

Let's test lower element.
Turn off power.
Remove both wires from lower element.
Test across both screws with a continuity tester.
Continuity tester is available at hardware store, or you can make one with battery, wire and a flashlight bulb.
d18ee07.jpg
The continuity tester has a battery and when light comes on, it says the circuit is complete.
Test1) Test across both screws on lower element with continuity tester.
If light comes on then element is good, but element has to pass one more test.
Test2) Test each screw on element to any bare metal part of water heater.
If light does NOT come on with second test, then element is good.
Light ON first test. Light OFF second test. Then element is probably good. But test is not fail-proof without using a meter.

I'm betting the lower element is burned out and you need to replace lower element. And you may need to vacuum out the sediment.
http://waterheatertimer.org/How-to-clean-sediment-out-of-electric-water-heater.html

Now if lower element is good, then the easiest thing is to do is replace both thermostats. Buy generic thermostats at hardware store for $25. After replacing both thermostats, the water heater will probably work. If there is still a problem, then the lower element was not as good as test showed, and it should be replaced also.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

If you are still having a problem, answer back and we'll give more details.

Oct 25, 2010 | Rheem 50 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

Reset button seems to be stuck down and run out of hot water to soon


If I understand correctly, you have an electric water heater.
The water heater is dual element and has 2 access panels on water heater.
You run out of hot water quickly.
And the reset is stuck down.

First of all, if the reset button is tripped, the water heater will produce NO hot water.
The reset, or ECO (electricity cut off), is designed to cut off all power to water heater.
So if you have some hot water, then ECO reset is fine.
The thermostat may be bad, but the ECO is fine

Next in line:
If your upper element is burned out, then the water heater will not make any hot water.
So if you have some hot water, that tells us the upper element is working.

The three remaining suspects are upper thermostat, lower thermostat, lower element

Let's test the lower element.
Turn off the power.
Remove both wires from lower element.
Test across both screws with a continuity tester.

d18ee07.jpg
The continuity tester has a battery and when light comes on, it says the circuit is complete.
Test1) Test across both screws on lower element with continuity tester.
If the light comes on then the element is good so far, but element has to pass one more test.
Test2) Test each screw on element to any bare metal part of water heater.
If the light does NOT come on with the second test, then element is good.
Element has to pass both tests. Light ON first test. Light OFF second test. Then element is probably good. This is not a fail-proof test but it is a good indicator.

I'm betting the lower element is burned out and you need to replace lower element. And you may need to vacuum out the sediment.
http://waterheatertimer.org/How-to-clean-sediment-out-of-electric-water-heater.html

Now if lower element is good, then the easiest thing is to do is replace both thermostats. After replacing both thermostats, the water heater will probably work. If there is still a problem, then the lower element was not as good as the test showed, and it should be replaced also.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

If you are still having a problem, answer back and we'll give you more details.

Oct 23, 2010 | Reliance & Electric Water Heaters

1 Answer

I have an Ariston electric oven that seems to get too hot & burns


You can try going to a lower wattage element. EX: Our oven can take a 2500 - 5500 watage element. The lower the wattage, it won't heat up as fast/hot.Plus it saves on your power bill over time. Go to the Ariston website, or find your element number and check the web for a lower wattage.

Jan 26, 2010 | Ovens

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

63 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

paulcarew

Level 3 Expert

2096 Answers

Dan Webster
Dan Webster

Level 3 Expert

8205 Answers

Donni Steen

Level 3 Expert

659 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...