Log in

View Full Version : Temperature and Pressure relief valve


dbreon
Jan 7, 2010, 08:41 PM
My hot water has been hotter than normal the past 2 days. I finally decided to go down and check what is going on. I found that there is a steady stream of water flowing out of the temperature and pressure relief valve. I have since flipped the breaker to turn off the water heater and shut off the water valve into the water heater. What do I have to do in order to turn on the water and have the hot water working again?

builderbob1
Jan 8, 2010, 12:14 AM
You definitely have a defect thermostate. Change all thermoststats on water heater.

massplumber2008
Jan 8, 2010, 05:33 AM
Hi Dbreon...

I think builderbob is right on with this. I would go to a home improvement store and purchase a UNIVERSAL upper and a lower thermostat and then replace both of your thermostats. Thermostats are cheap... like $8.00-$12.00 a piece or so and are super easy to change out as long as you do one at a time and draw the wiring out on paper before disconnecting anything.

If you want to save a trip, pick up a water heater temperature and pressure relief valve and some teflon tape while at the home improvement store and after the thermostats are replaced if the pressure relief valve still drip you can install the new T&P valve. If not needed you can easily return later... ;)

Lewt us know if you have more questions... OK?

MARK

dbreon
Jan 8, 2010, 07:12 AM
Thank you both I will try that and let you know if I have any questions.

dbreon
Jan 8, 2010, 07:28 AM
I opened up both panels to get to the upper and lower thermostat. Both have insulation that is soaking wet does this mean any thing different?

dbreon
Jan 8, 2010, 08:14 AM
Oh yeah it is a Bradford white water heater if that makes a difference only 8 years old.

massplumber2008
Jan 8, 2010, 09:05 AM
Wetted insulation is definitely not a good thing. Be very careful messing with wetted insulation and those wires and the access panel covers, etc... ;)

Clearly, you need to look for the obvious stuff. Bring a flashlight, get up close and really inspect all the fitting connections to the tank... including the relief valve connection to the tank... see if you see anything.

Next would be to remove the junction box cover and see if you see moisture in the box. If moisture is present then most likely the heater is shot.

If no moisture at the junction box you could start removing any screws on the top lid of the water heater and pull this up to see if you see any moisture there. If so, the heater is probably shot.

Anyway, you need to determine the reason for the wetted insulation or you need to check and see if the water heater is under warranty... could be... ;)

Click on this link to bradford white's warranty confirmation page:

Bradford White | Find A Model/Serial Number (http://warranty.bradfordwhite.com/warranty/warranty.asp)

You'll need the serial number and the model number off the tag on the front of the heater.

Look for the obvious stuff, of course, but if that heater is leaking you need to replace via warranty or out of your pocket!

Back to you...

MARK

builderbob1
Jan 8, 2010, 10:54 AM
I believe if you have the 2 problems you have water and overheating I would just purchase a new water heater. I don't know where you live but here in Missouri a 40 gal tank is from $250 to $350.

ballengerb1
Jan 8, 2010, 12:00 PM
In addition to everything else going on with your heater I would replace the T&P valve too, once they vent they are never quite perfect again and can drip

dbreon
Jan 8, 2010, 02:30 PM
Thank you all so much. I ended up breaking down and calling a plumber. $60/hr to tell me the same thing replacing upper and lower thermostat. I would've done it myself but this is nowhere near where my comfort level is. Thank you all.

ballengerb1
Jan 8, 2010, 02:32 PM
Hope you got yourself a new T&P valve too

massplumber2008
Jan 8, 2010, 05:46 PM
Hi all...

Dbreon... where did the plumber say the water was coming from... just curious?

Ballenger, I also mentioned the T&P valve needing replacement at my first post, would have been a good idea if the plumber changed that, for sure.

Builderbob, I've managed to save many, many water heaters that leaked from the wierdest spots over the years. Most of the time those little leaks turn out to be nothing more than the relief valve or a vacuum breaker dripping on the top of the heater and showing up at the electrical (electric heater) or burner chamber (gas) in some manner... ;) Sounds like this may be the same case here, too! Anyway, welcome to the plumbing page!

MARK