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Hello we have 75 gallon Rheem hot water tank that was built in 2004. We have replaced most of the parts in the tank that control the fame opertation and we still have the tank when heat is called for, come on and off continously. please help

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I think the problem is when the demand for gas to the main burner is applied it robs too much gas from the pilot which causes the safety device to shut down the gas until the pilot is hot enough to open the main burner supply again. look for dirt or spider webs where the gas comes out for the pilot if none is found and there is no adjusting screw for the pilot flame then disassemble the pilot assembly and stick a needle inti the orfice where the gas comes out which will make the pilot flame a little bigger.

Posted on Jan 09, 2009

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Hi i have a Rheem hot water system, it appears as though there is water leaking from the tank on the pilot light, and due to the damp/wet conditions, the pilot light cannot be relighted. Is this the...


If it is the tank that is leaking, you must repace the unit. A hole has opened up somewhere in the tank or one of the connections. Repair is not practical.

How old is your unit, though water conditions are more telling than age. If it is more than 5 years old ... well, it is probably time to replace.

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I am looking for reset code for AO Smith GPVH50 1000 water heater.Valve installed is Intellivent White rogers 184960 000, and 184960 002 on another boiler at the same location. After disconnecting Flamable...


Hi,not too sure what really prompted the problem. But you will need to still check for more posible places on your water heater to really know what causes it not to respond.

How Do I Troubleshoot My AO Smith Electric Water Heater

Troubleshooting and repairing an AO Smith electric water heater only takes a few minutes, and can save you hundreds in service calls and plumbing bills. The main indications of electric water heater problems are; no hot water, not enough hot water, slow hot water recovery, overheating and loud or unusual noises. Each of these problems has its own cause and repair requirements. We recommend calling a professional; however, you can repair most hot water heater complications yourself. Remember, if your water heater is still under warranty, or you are not sure, call the 1-800 number on your AO Smith water heater and ask for help and parts free.

Make sure the main electric circuit breaker(s) or fuses are in their "On" position inside the home's main electric panel. If a breaker(s) looks to be half on and half off, close the breaker and open it rapidly. If the breaker does not stay in the on position, replace the water heater breaker(s) and/or inspect the wiring from panel to heater. We recommend contacting a licensed, bonded and insured electrical contractor to troubleshoot the problem. In some cases, a bad breaker is a sign of trouble within the wiring system or water heater itself.
Testing AO Smith Electric Water Heater Thermostats

Turn off all circuit breakers and/or disconnect the fuses. Remove the thermostat cover plate(s) with a Phillips screwdriver. Turn the power back on.

Check for incoming power using a voltmeter. Set the meter to read 250 Volts. Touch and hold one lead wire to each of the top left and right screws of the top thermostat (or top two screws of the lower, if only one thermostat is present.) The meter should read approximately 210 to 230 volts of electricity. If no voltage is present with the breakers and fuses on, contact an electrician.

Turn on all the hot water faucets in the house until the water runs cold. This will ensure that the thermostat(s) will call for heat. Turn the faucets off.

Place one lead of the voltmeter on the top left thermostat screw and one lead on the second screw down on the right side of the thermostat. There should be 210+ volts of power. If not, turn the power off to the heater and push in firmly on the red reset button in the middle of the thermostat. You should here a click (but not always.)

Turn the power back on and check for voltage again. If no power, or limited power- fewer than 210 volts are present, check the top water-heating element for proper operation. If full power is present, but you still have no hot water after an hour or two, replace the top heating element. If no voltage, replace the thermostat.
Testing the AO Smith Electric Water Heater Heating Elements

Turn the power off to the water heater; remove the cover plate(s).

Test for incoming voltage with your voltmeter. Do not proceed until you verify that no voltage is present.

Loosen the two screws on each side of the heating element with a Phillips screwdriver.

Wearing heavy, electrical certified gloves remove each wire from the heating element and bend it slightly back out of the way.

Set your multi-meter to the Ohms position.

Place one lead on each screw of the element. The Ohm or resistance should read 12 to 16; averages are 13 to 14. If the reading is below 12 ohms of resistance, replace the water-heating element.

Reinstall the element's wiring.

Turn the power back on and test the circuit again. Reset your voltmeter to 250V. Full power should now be present. Turn the power off and replace the front cover(s).

Turn the water heater power on and wait an hour or two to check the hot water temperature at several faucets. The recovery time of an average AO Smith residential elect water heater is around 22 gallons an hour. It may take a while to reheat, depending on the size of your unit;

20 gallon 1 hour

30 gallon 1-1/2 hours

40 gallon 2 hours

50 gallon 2-1/2 hours

60 gallon 3 hours

80 gallon 4 hours

120 gallon 6 hours
Not enough Hot Water:

Calcium and other mineral buildup on a gas water heater control-valve thermostat probe will limit the heat detectable. You can clean the thermostat by removing the control valve and soaking the probe in a tall glass of white distilled vinegar and a little backing soda. Do not immerse the control valve itself; you will ruin it. Soak it for about an hour, and then rinse will with tap water before replacing.



Pilot light will not stay lit:

The most common issue with pilot lights is the thermocouple. The thermocouple is the thin copper wire, that when heated at its tip, creates a small electric charge that opens the magnetic safety valve inside the main gas control. Gas, water heater thermocouples do fail from time to time and need replaced. Older water heaters with accessible burner chamber doors are the easiest to work on. New water heaters are required to have sealed inner chamber doors and are not readily accessible. Only certified brand technicians should remove these doors. Each time the doors opened, you must replace an airtight seal. Failure to replace the seal could lead to carbon monoxide leaking from the water heater causing carbon monoxide poisoning.



The water heaters gas control valves and thermostats can also go bad. Replacing the control valve is just as critical a safety concern. If the pilot tube, and main burner tube, is not attached to the control valve correctly, gas leaks can occur.


Electric Water Heater Troubleshooting



Trouble shooting electric water heaters requires a bit of electric know how. Learning how to use a voltmeter, or multi-meter and becoming acquainted with your home electric system is most important when fixing an electric water heater. Failure to follow safe electrical practices can cause injuries and property damage.



When troubleshooting an electric water heater, keep in mind, there are only a few parts to its operating system: the heating element(s), thermostat(s), the main wiring connection junction, anode rod(s), water connections, T&PR valve, drain valve and the tank.



The most honest recommendation when repairing an electric water heater is this. Replace the thermostat(s), and the element(s), both upper and lower, if applicable, at the same time. Replacing one element or one thermostat of an electric water heater at a time causes a mismatch in the operating capacity of each part. Kind of like only replacing one battery in and electric device, it puts more of a strain on the older parts and causes premature failure. This leads to more frequent and costly repairs. Replacing all the parts at one time will help prevent future hot water heater problems and unnecessary water heater maintenance.


Water Heater Leaking



Water heater leaks are also an issue when troubleshooting a hot water heater. In most cases, you will need to replace the water heater. However, there are times when the leak is no coming directly from the water heater's tank. Leaks can also occur at a number of the water heaters connections. Before you replace your water heater, take the time to check of these locations:



Temperature and Pressure Relief valve (TP&R)- The brass safety valve usually located on the top, or near the top of water heater.

Finding Water Heater Repair and Replacement Parts

Finding water heater repair and water-heater replacement parts is not always so easy. Electric water heater repair and replacement parts are at most hardware stores, home centers and online retailers. Residential electric hot water heater repair parts are generally generic in by nature. New high efficiency, water heater parts like the ones for hybrid electric water heaters will only be available from their respective manufacturers until there is a need in the market place.



Hot water heater parts for gas hot water heaters are harder to find and often-difficult purchase. Many wholesalers will not sell gas repair parts or equipment to none licensed nonprofessionals. They feel there is a safety risk involved. However, there are online retailers whom do not see a need to limit their water heater parts sales. This is good for us, not so good for water heater companies.

Or you could simply contact them from the below link:



AO Smith Water Heater Phone Number and Contact Information

A. O. Smith Water Products Company

500 Tennessee Waltz Parkway • Ashland City, TN 37015

1-800-527-1953 • www.hotwater.com


Hope that helped

Jun 05, 2011 | Air Conditioners

1 Answer

I have 40 gallon Gas hot water heater. I need t replace the anode rod. I need to know the size


Normally, gas tanked water heaters do not have a an anode rod.It's not required. Only electric tanked water heaters do.
To help you to understand the workings of a gas tanked water heater, click on the following link.

http://homerepair.about.com/od/plumbingrepair/ss/hwh_tank_gas.htm

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1 Answer

We have a Rheem hot water system installed in 1994. We think from the owners guide left by the installer that it is a model 52F. Our plumber is having difficulty getting a replacement part. The bottom...


Hello, The plumber should be able to call Rheem directly and if that does not work, your local parts supplier for Rheem should be able to get him a number for the Rheem factory (I'm assuming he called and the parts supplier could not locate the part he needed??)
Hope this helps. Thanks James

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Whats the routine for fitting a new expansion tank? HELP At what pressure should the overpressure relief valve lift?


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Dec 30, 2010 | Air Conditioners

1 Answer

Water not hot enough, have to open more than one hot water faucet to get hot water


The Dip Tube "The dip what?" you might say. In every water heater, there is a plastic tube parked in the cold port that brings cold water to the bottom of the tank to be heated -- and preventing it from mixing with already-heated water in the top of the tank.
If that falls into the tank or splits or breaks, then cold mixes with hot and suddenly your water heater doesn't work nearly as well as before.
There's a ton of Americans out there who know all about this because of a debacle a few years ago. The company that makes most of the dip tubes in this country changed its formula for the plastic. The new plastic was prone to disintegrate in certain conditions. The operative time period was August 1993 to March 1996. Aside from gradually or suddenly having much less hot water, the telltale was finding bits of plastic clogging faucet aerators.
There was a scandal, class-action suit, and settlement. But the terms of that expired several years ago, so if you find you have the problem, all you can do is try to deal with it. Even after replacing the dip tube and flushing the tank, you might still find plastic bits for awhile. But at least the water will again be hot.
Debacles aside, you should also be aware that even good plastic will eventually become brittle with age and hot water. We've found dip tubes in old water heaters that were split and broken. It's entirely possible for a water heater to outlive its dip tube. Simply replacing this inexpensive part can restore your tank's function to new and save you the cost of a new heater. So think about that before you run out and buy a new one if you experience this problem.
You may also want to flush out any built sediment. Check this out.

http://www.waterheaterrescue.com/pages/WHRpages/English/OrderPages/XCart/Sediment-Control-Flush-Kit.html

Dec 04, 2010 | Air Conditioners

1 Answer

I have old rheem ruud hot water tank. it's down for 4 day's, i would like to get it started, but the thing i would like to find out is can i get it going by lighting it up by using lighter or not. The...


Yes you can light it with a BBQ type lighter (long enough).
If it lights and stays lit then you need to change the thermocouple (looks like a little pipe off gas valve)

In simplest terms, a thermocouple is a temperature sensor. Normally inexpensive, a thermocouple is standard on hot water tanks. If your thermocouple breaks or you feel it is not working properly, consider replacing it b?p=y23r90wnbq7oglkvtnbuhgyhrktxauzqpeoaddsf&t=18g7grtjm%2fx%3d1290445898%2fe%3d2143440281%2fr%3dacont%2fk%3d5%2fv%3d8.1%2fw%3d0%2fy%3dyahoo%2ff%3d2680761980%2fh%3dcg49imfjb250iibzzxj2zulkpsjzmjnsotb3tkjxn09nbgtwve5ivuhnewhys1r4yvv6cxbfb0fezfngiibzaxrlswq9ijq4mtmwnteiihrtdg1wpsixmjkwndq1odk4ota5njiwiia-%2fq%3d-1%2fs%3d1%2fj%3d6f060d4c&u=13gohjn6b%2fn%3df8a.bkwnpkw-%2fc%3d715481.14405591.14260180.13829426%2fd%3dlrec%2fb%3d6235626%2fv%3d1 lg.php?category_id=6&content_type=article&content_type_id=584031&key_page=1721642411054458764&site_id=1&bannerid=10089&campaignid=2945&zoneid=2&loc=1&referer=http%3a%2f%2fwww.associatedcontent.com%2farticle%2f584031%2fhow_to_change_a_thermocouple_on_your.html%3fcontent_type_id%3d584031&cb=ebe6534afe avw.php?zoneid=2&cb=1721642411054458764&source=&n=a14de4a9&slice=-1060-&dma=-0-&cty=-us-&content_type=article&content_type_id=584031&category_id=6&key_ad=1045292919&site_id=1&ad_pos=2&key_page=1721642411054458764&ac_url=http%3a%2f%2fwww.associatedcontent.com%2farticle%2f584031%2fhow_to_change_a_thermocouple_on_your.html rather than installing a new gas hot water heater.

Begin this project by shutting off the gas control knob on your hot water heater. Once you are sure that the gas is off, you should use a wrench to remove the nut that attaches the thermocouple to the gas hot water tank. This nut should appear to be securing a piece of copper tubing or other type of tubing. With the nut removed, you should also pull down on the tubing, dislodging it from the thermocouple.

Sometimes there is another nut that attaches the end of the thermocouple to the pilot bracket, if this is the case you should unscrew this nut as well. You can slide it down the tubing and keep it there until you need to replace it.

With the nuts that were holding the unit in place removed, you should be able to slide the old thermocouple out of the brackets that hold it to the hot water heater. You should then take it to a hardware or home improvement store and find a suitable replacement. Then follow these steps to install the new part and fix the hot water heater.

To change the thermocouple, you should press the end of the thermocouple into the pilot bracket as far as you can. If you had to remove a second nut to remove the old thermocouple, now is the time to replace that nut securely.

With the thermocouple in place, you should connect the lead to the control unit. Use the nut you removed in the beginning steps to secure the lead. You should then tighten it at least a quarter turn with a wench to make sure the lead is securely attached to the control unit of the gas hot water heater.

Now that the new thermocouple is installed on your gas hot water heater, turn on the gas shut off valve that you turned off earlier. You should be able to relight the pilot and the functionality of your gas hot water heater should be restored.

Nov 22, 2010 | Air Conditioners

1 Answer

Bought reliance 602 50 gallon electric hot water heater 4 years ago and it stoped heating bought new upper and lower elements and new upper and lower thermostat and still no hot water power goes to all...


did you turn the breaker on ? before filling the tank ?the water tank must be completly full before turning on. the new elements will blow if not submerged in water ..if you have 240 volts at the element and its not heating one is out .only one element can be on at a time so you really need an amp prob to test element .try an ohm meter an check resistance ,sounds like one element is out .hope this helps good luck /P/Swhen filling tank. open a hot water valve, on tub or faucet to remove air while filling the tank. you will hear the air coming out of faucet. when water comes out its filled..

Aug 23, 2010 | Air Conditioners

1 Answer

Hot water heater is natural gas type gas is staying on all the time burning even when water is hot it continues to burn. Not hot water tank is over 10 years old should I try to repair or just replace???


The thermostat is what is out of calibration...this is built into the gas valve. Unfortunately the part cost almost what a new tank does. My opinion is to replace.....today gas valve....another 8 years the tank...

May 09, 2010 | Air Conditioners

1 Answer

Ruud pvp50e-1a not heating properly I am not home all the time but from what my wife and son said there is very little hot water coming from this 50 gal tank. It is about 12yrs old and has never been...


Generally speaking if there is hot water for a short period of time, the tank volume may be filled with sediment (calcuim etc.) this is very common in older heaters, basically the tank used to be a 50 gallon tank, with the internal volume being filled with sedimant it may now be a 25 gallon tank ... verify that the ignition circuit is operational, and if so it may be time for a new tank. hope this helps,


Dan

Mar 13, 2010 | Air Conditioners

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