Gas Hot Water Heater-Temperature control

[jkcsanchez]

I own a Rheem gas hot water heater; temperature control dial is set to the lowest setting; water temperature still rises to a dangerous 150 degrees farenheit; Can the temperature control valve be recalibrated or replaced.

[Gary Swart]

Yes it can and probably should be. Of course all of the electronics should be tested before just sticking new parts on and hoping for the cure. A plumber would be able to test everything and then make whatever repairs are necessary.

[jadnashua]

Depending on the age, it might be under warranty. I'd give them a call. I'd also review the troubleshooting guide in the manual. If you don't have that, you can probably find it on their website.

[jkcsanchez]

Thanks for your prompt responses!

[Thatguy]

water temperature still rises to a dangerous 150 degrees farenheit
For adults this is a 3rd degree burn in 2 seconds.

[jadnashua]

For adults this is a 3rd degree burn in 2 seconds.

This is also why my city requires all new WH installations/replacements to have a tempering valve on the outlet. Now, those can go bad, too, but it's a secondary safety measure.

Having the water that hot has some advantages IF you have a tempering valve...it makes it look like you have a bigger tanks, and will kill any bacteria that may be in the water. It costs more to keep it hot, though.

http://www.terrylove.com/images/honeywell_tempering_2.jpg

[hj]

IT can be replaced, but should NEVER be recalibrated.

[jkcsanchez]

Thanks everyone for the information provided. Since the unit is 8 years old, I've decided to install a new HWH.