Question about Water Heaters

1 Answer

I have a GE Profile Water Heater Model #SE40M12AA01.

I turned the temperature both on the bottom and on the top to 150 degrees, the results I had no hot water. I turned off the circuit breaker; turned the temperature down to 125 both on the bottom and on the top. Opened the pressure valve and let some water out. This morning, there was a leak coming down my attic door. I dried the pan, turned on the shower and the pan filled with water, the pan is NOT OVERFLOWING. I brought the water temperature both on the bottom and on the top to below 125 degrees and I do not see any more leaking from the attic. Could the high temperature have caused this problem? And why would it? Should you not be able to have the temperatures set for really hot water?

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  • Mayte Madruga Nov 01, 2012

    I have a pumber which tells me that the water heater is no good. They will replace it with a 30 gallon RHEEM water heater. How do I know how many watts is the one I have and what should I ask about what they are selling me?

  • Gene Haynes Nov 01, 2012

    Look at label on side of tank, and it will show watts. It should be 4500 watts. New Rheem water heater is good. Rheem will be rated 4500 watts. Check that circuit breaker is 30 amps and wire is 10 gauge.

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  • Water Heaters Master
  • 5,245 Answers

I recommend safety changes to prevent ruptured water heater and assorted leaks.
135 degree hot water.
Maybe replace TP valve if it is dripping.
Drip pan under water heater with 3/4" drain line to outside.
Expansion tank on incoming cold water line to absorb pressure build-up, and prolong life of tank and plumbing.

Here's why:

1) Yes you can have scalding hot water.

2) I recommend 135 degrees since that will burn the evil right out of ya. And generally kill clothes washing bacteria.
http://waterheatertimer.org/How-to-adjust-water-heater-temperature.html

3) 150 is dangerous and can seriously burn skin in 1.5 seconds. Not safe around children and elderly.

4) Temperature settings on electric water heater are approximate, since thermostats are calibrated approximately, and read temperature through tank wall.

5) Also if you want to increase amount of hot water for high-consumption household, then setting tank temperature upward is one solution since more cold water is mixed with hot, so amount of hot inside tank goes further.

6) High temperature can cause TP valve to release water.
TP valve is pressure-temperature safety valve. Do NOT cap off.
Rating should be 125 psi and 180 degrees ... but all things water heater are approximate, and TP valves need replacement now and then.
It is not recommended by water heater manufactures to use 150 psi TP valve when water heater came with 125 psi. Rating shows in small print on end of TP. New TP valves sold at local hardware. Let tank cool before installing new one.

7) Higher temperature and high pressure can rupture tank.
Pressure over 80 psi shortens life of water heaters and plumbing fixtures. Put BTG100 pressure gauge on water heater drain valve to check pressure.

8) You need a drip pan with 3/4" drain line to outdoors, or to drain vent line, to prevent flood caused by ruptured water heater.
Turn water heater off when going on vacation.
Inspect water heater each 6 months.
Drip pan available at local home center or hardware:
http://waterheatertimer.org/9-ways-to-save-with-water-heater.html#drip

9) Heated water expands and puts pressure on tank and pipes.
Water does not compress... so when water gets hotter it expands against tank wall and against pipes.
Especially in closed system (check valve present) when system is without expansion tank.
Expansion tank is installed on incoming cold water line.
http://waterheatertimer.org/9-ways-to-save-with-water-heater.html#expansion

Posted on Nov 01, 2012

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SOURCE: GE Profile Smart Water Heater leaking at top/no hot water

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Thanks

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gary1121
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SOURCE: when filling bathtub or running two showers, water heater howls

it could be the fact thath the water comming in is what the problem is,, on a well system the water is extra cold and the unit is working hard and with sand aso comming in it makes it harder to keep the temp up on the water,,, flush the tank, put hose on it and open the drin valve with a hose on it turn the cold water on and let it flow till the water comes out clear usually about 5 min,,, get all the sand out and other debris and try it

Posted on Jun 06, 2009

  • 115 Answers

SOURCE: Rheem Gas Hot water Heater; Model 21130DV:

yes, sounds like the temp control is bad, you should be able to google model# and thermostat to find replacement. should be fairly easy to swap out

Posted on Aug 19, 2009

heatman101
  • 43501 Answers

SOURCE: temperature & pressure relieve valve leaking

Hi,
Once in a while flicking the little handle will reseat the valve or release whatever dirt is under it. Usually not...
Your best bet is to replace it.
Turn off your hot water heater and drain the water down past the valve. It jusr screws out and the new one will screw back in.
You can find a new valve at any hardware, HomeDepot or Lowe's they are not exspensive at at.

I hope that this will help you to solve your problem!

Thanks for using Fixya!!

Heatman101

Posted on Dec 03, 2009

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2 Answers

Water only stays hot for about 5 min or


Gas or electric?
Electric water heater ... then test for crossover, check for water leak, replace thermostats, test elements
Gas water heater ... test for crossover, check for water leak
http://waterheatertimer.org/Crossover.html

http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html


http://waterheatertimer.org/How-to-test-water-heater-element.html

water leak: turn off all taps and put ear against pipe and listen for water leak... check if water meter advances when all water taps are off.

Gene

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Correct ohm value on a water tank heater coil part # wr13x10500


First neither the model number or the supposed part number are correct. Second is this the top or mid-line heater loop?
Usually it's not the coil that fails but the thermostat.

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How do I turn the bottom thermostat down to 110 degrees. What should the numbers be?


Many times there are no numbers on thermostat since temperature settings are approximate.
Link below shows step-by-step temperature adjustment for typical tank-type gas and electric water heaters. Residential electric tanks can usually be set from 90 to 150, and gas from 50 to 150.
http://waterheatertimer.org/How-to-adjust-water-heater-temperature.html
Use cooking thermometer at water heater drain valve for more precise reading.

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.

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Recently purchassed system from you plumber installed it and we asked specifically not to set it on child settings.....we have not had one HOT shower since. how do we go about resetting the hot water...


These Tankless water heaters attempt to heat water as it quickly travels through a short series of heated copper pipes. A high volume of water at an accelerated speed has little time to heat up as it passes through its heating source. You can turn up the temperature (which you undoubtably tried) and turn the water volume all the way down. These settings will produce the hottest temperature capable of the unit - given the entry temperature of your water source.
Most underground water enters at app 52 degrees - and becomes even colder due to ambient temperatures. Difficult to raise this temperature 60-70 degrees in a few seconds of heating.
I've routed a series of copper pipes adjesent to the home heating system in an attempt to pre-heat incomming water. It's only a few degrees warmer, but results a 20- 30 degree hotter delivery.
I have installed some top end units that simply delivers Hot water without compermise.

Mar 01, 2011 | Bosch & Tankless LP Hot Water Heater

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We have a brand new rheem 40 gal elec water heater, after installation we have water leaking from the base of the relief valve, pooling up in the plastic fitting and making it way over the side all over...


Water heater should be set in a drip pan.
Otherwise, put 1 gallon bucket under TP release pipe to catch water.
http://waterheatertimer.org/Water-at-bottom-of-water-heater.html#drip-pan

When you say relief valve, I assum you are talking about brass valve located on top of tank or near top of tank. This is TP valve and a pipe connects to this valve and runs down to within 6" of bottom of tank. TP valve has a small lever on it.
If you are talking about tank drain valve located at bottom of tank, then add a comment.
Following information is for TP valve.

Dripping TP valve can be caused by 3 different thing:

1) Obstruction inside TP valve. Open TP valve for a moment to flush away particles and slowly lower lever back down. See if water stops dripping, if not, then replace TP valve

2) Defective TP valve: replace TP valve. Turn off electricity to water heater. Let heater cool for several hours so you do not get scalded. Close shut off valve located above tank on cold side. Open tub spout to relieve pressure, open tank drain or open TP valve and empty water below TP valve level. If TP is located on top of tank, not much water has to be drained. Tank is under press when hot, so be careful. Put teflon tape on new valve and install with big pipe wrench by turning clockwise until TP valve is very tight.

3) Overheating tank. TP valve is temperature-pressure valve. If tank water is over 150 degrees, the TP valve starts drizzling hot water to relieve tank pressure.
Lower tank pressure two different ways:
a) turn down thermostat
http://waterheatertimer.org/How-to-adjust-water-heater-temperature.html
b) install expansion tank on incoming cold water line
http://waterheatertimer.org/Water-at-bottom-of-water-heater.html#expansion-tank

Dec 19, 2010 | Rheem Water Heater Pressure Relief Valve

1 Answer

Have a GE GG40T6A gas hot water tank. Leaking really bad out of the pressure relief valve. It is a rental property, gas was off to the house (tenants moved out in the night). When the gas company turned...


12 year old water heater is getting near the end.
Some tanks last 20 years, but that's the exception.
To find exact age of your brand water heater:
http://waterheatertimer.org/pdf/WaterHeaterSerialNumberDecoder.pdf

Leaking TP valve:
1) Lift TP lever and gently lower back into position to see if that stops leak.
Occasionally something gets stuck in the valve.
2) Sometimes water heater temperature gets turned up because heater is not producing as much hot water as before, and higher temps cause TP to release pressure because of overheating.
Dial temperature down to 120 degrees.
http://waterheatertimer.org/How-to-adjust-water-heater-temperature.html

3) If steps above don't fix problem, replace TP valve >> TP valves have 125 or 150 degrees rating >>> older tank shouldn't be running above 125 because higher temps cause more pressure on tank, so thermostat should be lower than 125 degrees TP rating.
Buy replacement TP at any hardware store + a roll of teflon tape to seal pipe threads.
Turn gas control to pilot ... this will keep pilot lit but burner will not fire.
Let water cool, and then drain some water out of tank.
If TP valve is on side of tank, then open drain on side of tank and drain water until it is lower than valve level. Open bathtub spigot to let air into line.
http://waterheatertimer.org/Water-heater-will-not-drain.html
Be careful around water that is higher than 120 degrees F >> you can get burned quickly >> apply cold water to any burn.
Use pipe wrench and unscrew TP valve counterclock-wise.
Install new TP and put teflon tape on threads.
Re-fill tank completely and open tub valve on hot side until water is running >> then turn gas control back to original position.
Do not fire up any water heater before tank is completely full of water or this could damage tank.

To read more preventative information about water heater leaks and age problems:
http://waterheatertimer.org/Water-at-bottom-of-water-heater.html

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I have a Vangaurd 6E720 30 gal electric hot water heater and the water does not get very warm.


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If it is an older tank, try turning up the temperature setting on both thermostats. Set the top one 10 degrees higher than the bottom. If there is now change in the water temperature after a day or two, replace both thermostats. While your at it, change both element as well. A complete universal electric water heater rebuild kit should only cost around $35.

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My hot water will not get hot at all. Model SE40M12AA01 Stop getting hot over night. Breaker to heater was tripped, I reset it and still no hot water.


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yes, sounds like the temp control is bad, you should be able to google model# and thermostat to find replacement. should be fairly easy to swap out

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