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Should the settings be different from the top and the bottom thermoststs

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No, It will not hurt anything except wear out the thermostat a little quicker. (The one thats higher)

The unit will be more efficient, especially at high use times if both t-stats are at the same temp.

Posted on Sep 06, 2009

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1 Answer

Why do I have to have an external feed at bottom?


Having the dip tube routed to the bottom will keep the water circulating in the tank. Drawing out from wither the top or bottom will make no discernible difference.

May 02, 2015 | Water Water Heaters

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I just bought a Jayco trailer with an Atwood 6 gallon water heater which works on both electric and gas. I was able to locate the bypass valve and made sure hot water was in the tank, however I only get...


Check your by-pass again. Cold water enters bottom fitting/line, and hot comes out the top fitting/line. Any valve in between should be closed, and any valve going in at bottom should be open, as well as open at top. There are a few different by-pass set-ups, so without knowing which one you have, this should guide you somewhat.
If you can describe what you see there, I can probably guide you through it.

May 07, 2011 | RTO Atwood DSI-RV Water Heater-6 Gallon

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Do I need to empty my water heater to change the bottom thermostst.


Hi,
For safety reason, You've better empty your tank first before work onthis thermostat.
Regards

Apr 24, 2011 | Water Heaters

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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

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My water heater thermostat keeps on tripping. I recently changed the temperature settings. I do not know if I increased or decreased the settings. What should I do. Due to this problem I switched on my...


Hi .. if the thermostat is tripping and the safety valve is dripping , that would indicate that the water is being over heated , or the tank is at a low level . Check the thermostst setting, it should be about mid scale. Check the supply valve to be sure that there is a constant supply of cold water. Any thoughts?

May 02, 2010 | Rheem 80 GAL ELEC TALL Water Heater 6YR SC...

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My rheem water heater doesn't seem to be heating the water. I have a Rheem model 81SV40D and the water is not hot and doesn't seem to get hot. I have checked the dials on the water heater and they are set...


try setting the bottom 10 degrees hoter than the top could be in short cycle (thatis the bottom calls for heat on the bottom element and set too close so goes back to top and cycles off

Jan 04, 2010 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

Top element only working


How they work. First you need to know that cold water goes into the tank near the bottom (because of the "dip tube" inside the tank) and hot water is taken out at the top. Also hot water naturally rises.
so... when the tank is full of cold water the top element will come on and heat up the top 1/3 of the water then the bottom element will come on and finish heating the rest of the tank.
so... set them both at the temperature you want the water to be... about 120^F.

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Water Heater Heating Problem


i guess it is electric ,check bottom element reset button .remove bottom cover with power off look for a button on bottom thermostat or limit if find push it to reset ,,then set the thermostats , set top to desired temp and the bottom at least 10 degrees more ex. top 130 bottom 140 this might prevent problem reoccurring if this not problem bottom element could be burned out.replace ele

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