Tp valve placement

Error A102 ?
Where does the error code show on your model?
The XG50T appears to have honeywell gas control valve that flashes error code with series of blinks, and not LCD readout.
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent

If the release of water got electronics wet, then the electronic parts likely will not function.
Release of water from TP valve means temperature of water inside tank exceeded the temperature-pressure rating of TP valve.
This is a safety feature.
Water from TP can indicate thermostat failure, or other less serious issues.
http://waterheatertimer.org/How-to-replace-TP-valve.html

Your water heater appears to have 9 year warranty.
Serial number located on label on side of tank will have numbers- 1st and 2nd digits are week of manufacture, 3rd and 4th digits are year of manufacture,
Call Rheem since they do not post service manuals.
Other companies post service manuals and are much easier for DIYers.

Gene


Water Heater Timers Save Money

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

TP valve has 3/4" IP iron pipe thread which is about 1" outside diameter
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent
http://waterheatertimer.org/How-to-replace-TP-valve.html

Gene
h

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

check your water pressure and then make sure it is not to high or all the problems you have had were not the answer. it is a pressure /temperature valve not just . temp.

Add an extrol expansion tank to the piping. You can get one for about thirty dollars from the hardware store.

TP valves screw into 3/4" opening.
End of probe MUST extend into upper part of tank, and cannot be located on pipe away from main body of heated water.
http://waterheatertimer.org/How-to-replace-TP-valve.html

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

Copy following link for general troubleshoot:
Then add a comment and let's get the problem solved.
http://waterheatertimer.org/Leaking-water-heater.html

FYI:
Anode rod is either connected to hot-water nipple, or installed in separate port located top of tank. Anode stops water heater tank from rusting.
Dip tube is a plastic tube that is connected to cold water nipple and extends to bottom of tank so cold water always enters tank bottom.
TP valve is brass safety valve that is screwed into a port located on top of tank, or located on side of tank, and will release water when pressure or temperature exceed rating of TP.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

If you have overheating, the elements are working fine and are not suspect.
Also electric power and circuit breaker are eliminated.
ECO reset is not tripped, so that points to faulty TP vlave, but water temperature has to reach 180 degrees F for ECO to trip.
Open link to see ECO located on upper thermostat.
http://waterheatertimer.org/images/Jly-022-thermostat2-175.jpg

Remaining suspects are 1) bad thermostat or 2) faulty TP valve or 3) Stacking or 4) combination of the 3.
Raise TP lever and gently let back down and see if something was lodged in the valve.

1) If you are certain that water feels hotter than normal, then replace both thermostats:
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
http://waterheatertimer.org/How-to-troubleshoot-electric-water-heater.html

2) If water seems normal temperature, then replace TP valve:
http://waterheatertimer.org/How-to-replace-TP-valve.html

3) If TP releases water after frequent water use, then Stacking could be part of problem:
http://waterheatertimer.org/Stacking.html

Open following link to see step-by-step.
BE CAREFUL, tank must be turned OFF and water COOL before removing TP valve.

http://waterheatertimer.org/How-to-replace-TP-valve.html

Hot water pressure relief valves serve two functions. The first is to remove high-pressure water from the hot water tank. The second function is to act as a high temperature valve to remove water that exceeds a predetermined point for the valve. Both of these relief settings are preset at the valve factory. Many pressure relief valves will come with a metal tag that identifies these release points. If you're attempting to remove the hot water heater pressure relief valve, pay careful attention to ensure that you replace with the correct valve.

Your hot water heater has a pressure relief valve safety mechanism. When pressure inside the water tank exceeds certain limitations, the valve opens up to allow the pressure to be released. A faulty pressure relief valve will not release excess pressure, which could cause extensive damage to your home. You should test the hot water heater pressure relief valve once every six months to ensure proper operation. If the pressure relief valve fails the test, replace the valve with a new one immediately

Locate the pressure relief valve on your hot water heater. The pressure relief valve has a lever handle on top with a drain pipe attached to it. The pressure relief valve is most often on the side of the water tank toward the top. Newer models of hot water heaters have the pressure relief valve on top of the water tank.

Inspect the area around the pressure relief valve for signs of leaking water. If there is leaking water near the relief valve connection, replace the relief valve. If no leaking is evident, proceed with testing the pressure valve.

3

Examine the area below the pressure relief valve drain pipe. Most water heater closets either have a drain in the floor below the pipe or the pipe is inserted into another pipe to direct the water out of the home. If the end of your drain pipe is not in another pipe or there is no drain in the floor, place a bucket under the drain pipe to catch water when you test the pressure relief valve.

4

Pull the lever handle on the top of the pressure relief valve up with your fingers. A working lever will lift up without difficulty.You should begin to hear water going through the drain pipe. Slowly release the lever to shut off the pressure relief valve. The pressure relief valve is good. If you did not hear water running through the drain pipe, lower the lever on the pressure relief valve and replace the valve. If the lever is difficult to raise, do not force the lever. Replace the pressure relief valve.

Now with all that said if you have a closed loop water supply system and you have a pressure vessal/expantion tank it may have gone bad and is making the TP valve leak. you can call your water provider to see if you have closed loop system.

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