Question about Rheem Water Heaters

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Water has been dripping from t p valve for awhile. I tested relief valve and it works but water still drips. I turned down the temp and it seems to have slowed down alittle, but not stopped. What could this be?

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Replace the tp valve the seal is bad

Posted on Aug 04, 2010

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1 Answer

Water dripping from blowpipe


It is normal for water to drip out sometimes from the pressure relief valve outlet pipe. If it drips continuously then open and shut the pressure relief valve several times so the pressure relief valve shuts off properly.
If this does not fix the dripping problem then the pressure relief valve is faulty and needs to be replaced.

Apr 02, 2013 | Water Heaters

1 Answer

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

I have a small leak and it is dripping on the ground


You'll obviously have to determine where leak is coming from, then we can decide how to stop it. If it's the pressure relief valve outside, and it's only a small drip, that is normal, but you can try lifting arm on relief valve and cleaning it out a little to see if that helps clean it out. BE CAREFUL when water is hot, that you don't burn yourself, thus better to try it when cooled down. If it's dripping, or running out too much, it may be that water is too hot, or water pressure is too high as well, so check that as well. Usually smart to install a pressure regulator in line from hose to trailer. If your running off on board pump, not very likely that pressure is too high as they are usually set at 40-50 psi, which shouldn't cause that. If water doesn't feel hotter than before, then best to replace pressure relief valve, if that's where dripping (excessive) is coming from.

Dec 07, 2010 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

My Atwood 6 gal. water heaters pressure relief valve starts dripping shortly after (8 or 10 min.) heat is called for, and dripping gets stronger until a full flow. I have checked all four hi-limits and...


If the water seems hotter than normal, then a faulty thermostat would be a good bet.
If water doesn't seem any hotter than normal, then check incoming water pressure.
usually 2 things cause that, too much pressure coming in, or thermostat faulty and not cutting out when normal temperature reached, thus higher temperature, and pressure. If both them check out, replace valve.

Oct 30, 2010 | RTO Atwood DSI-RV Water Heater-6 Gallon

1 Answer

We have a water softner AO Smith and we did the release valve on it and now it wont stop dripping.


Do you mean a water heater? Not sure why a RELIEF valve would be on a water softener.

Many times if a relief valve is not tested regularly it can gat minerals and deposits in it that can prevent it from sealing back up when tripped.

Sometimes tripping it quickly with the lever can make it work again. It is a realativly easy and inexpensive part to change.

Turn off water and relieve pressure on tank. Have the new one doped up and ready. Remove the old one and put the new one right in. Test the new one and you're done.

This valve should be tested monthly and a gallon or so of water drawn from the bottom of the heater as minerals and sedimet build up in the bottom. The water heater will last longer and be more effecient if seviced reguarly.

Jun 09, 2010 | Water Heaters

1 Answer

We have a fast drip coming from the drain, what does that mean?


The pressure relief valve is going bad causing water to run out of drain line. They are easy to replace and they are a standard 3/4' threads. Turn power off and drain water down till no water comes out of drain if you lift the lever on the relief valve.
Lowes or Home Depot will carry a replacement for this heater. The T & P valve is a safety feature that will open if the pressue get's to high due to high heat in heater. With this you would get a blast of hot water running out.
T & P valve start to go bad they start dripping and evenually can not hold water back. This is a early sign for you to replace before it goes to running out.

Jun 02, 2010 | Rheem 40 Gallon FVR NATGAS Low WATER...

1 Answer

Water dripping out of drain line on my Rheem Water Heater


The T & P valve is connected to the drain and it may be bad causing it to drip. You could try lifting the lever and then closing it back on it to see if it will seal. Also check the thermostat for heat setting, but than likely it is going bad.

It is a pressure relief valve and normally last about 5 years or more before they need to be replaced. The purpose of this valve is to protect heater from building up pressure and protecting the home, It releases water once the heater reachs beyond the limit of the valve can handle.

It is a standard 3/4" thread and can be removed with a pipe wrench. Just turn power, water off and drain water down to just below where the drain is.

Lowes or Home depot shoul dhave one just ask for a pressure relief vakve for a Hot Water Heater. prices range around $15.00.

May 31, 2010 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

It quit working and I removed panel and reset it.now it seems to make the water hoter and it is making constant noise and leeking a little from the pressure relief valve


The pressure relief valve is bad if it is leaking due to too hot of temp or it has gone bad. If it is hotter turn down the temp on thermostat and see if it quits dripping..

If it's making a noise it may be heating the water the way above the limit for the relief valve.

If it is the relief valve they have them at most hardware stores and can be replaced. When installing use teflon tape on threads if this is the problem.

May 21, 2010 | Water Heaters

1 Answer

Atwood g6A-7E wont turn off keeps heating water till tmp drips


Some dripping at pressure relief valve is normal, but are you saying it continues to run excessively hot? Does water in trailer feel extra hot?
The ECO, and/or Thermostat, should cut the power/flame before it gets too excessive.

Apr 03, 2010 | RTO Atwood Water Heater - 6 Gal LP

2 Answers

My relief valve is leaking pretty bad. why is it dripping constantly?


Before disassembling your valve try activating it a couple of times. Sometimes, especially if its dirt or sediment, it will clear the valve.

Sep 28, 2009 | Water Heaters

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