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I need a wiring diagram for ruud model 665H-82D electric hot water heater..Top element...Thank you, dianne diannes@neo.rr.com

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Http://waterheatertimer.org/How-to-wire-water-heater-thermostats.html
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
http://waterheatertimer.org/How-water-heater-thermostat-works.html

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Posted on Mar 20, 2011

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Changing thermostat on ruud water heater


1) Copy following link to adjust water heater temperature.:
http://waterheatertimer.org/How-to-adjust-temperature-on-water-heater.html

2) Add a comment if more help is needed. Jan 2013

Jan 26, 2013 | Rheem Ruud Commercial Electric Water...

Tip

Electric Water Heater not Working


If you have an electric water heater and it is not making any hot water then you have a problem. The good news is that electric water heaters are not that hard to troubleshoot and there are not a lot of things that can go wrong with them. I will go over the things that can give trouble and how to fix them.

First off if you have some hot water but not as much as you did when it was new then you probably have a bad bottom element. Only the top element is working, so you are only getting about 1/3 of a tank of hot water, replace the bottom element and you will be good again.

If you are making steam, then you have a bad thermostat. While you are making the steam out the relief valve, check to see which element is working. The easiest way to do that is to see which element has 220v on the two screws on the element. That thermostat at that element is bad. Replace it and you will stop the sauna.

If you have no hot water then check the red reset button directly above the top thermostat. You may have to push very hard on it to get it to reset. If the reset is tripped then you have a bad thermostat. Finding out which one can be tricky and timing is important to catch the bad thermostat in the act.

No hot water can also be the result of the top heating element going bad. If the top element goes bad then the top thermostat will never get enough heat to trip on the bottom thermostat. Therefore you will get no hot water. Dual element hot water heaters for residential use, do not ever run both elements at the same time. Only the top OR the bottom will be energized at a time.

This all there is to checking an electric hot water heater. If you are having problems go through this list systematically and you will find your problem and be able to fix it.

For a diagram of how a typical electric hot water heater is wired, check out this tip.

http://www.fixya.com/support/r4422595-electric_water_heater_wiring_diagram

http://www.fixya.com/support/r4656190-electric_hot_water_heater_temperature

http://www.fixya.com/support/r4656414-replace_thermostat_element_electric_hot

http://www.fixya.com/support/r4041115-clean_hot_water_heater

http://www.fixya.com/support/r3689051-home_water_heaters_hot_water_heater

on Apr 28, 2010 | Water Heaters

1 Answer

How to wire a rheem 40 gal electric hotwater heater with a yellow,blue, and Black wires


Jan 2013
1) Water heaters can be wired many different ways.
Copy following link For ordinary household 240Volt water heater, the heater is wired for non-simultaneous operation:
http://waterheatertimer.org/images/WH-w-combined2-1000.jpg
Copy following link For other wiring diagrams, including off-peak, simultaneous, redundant, etc
http://waterheatertimer.org/How-to-wire-water-heater-thermostats.html

2) Make sure water heater circuit breaker and wire size matches watt rating that shows on end of each element.
http://waterheatertimer.org/Color-codewire.html

3) Non simultaneous means only 1 element is ON at a time.
So either upper element is ON, or lower element is ON, or both elements are OFF.
Both elements are never ON at same time.
So non-simultaneous water heater with two 4500 watt elements has total connected watt rating of 4500 watts. Because only 1 element can be ON at a time.
Use 30 amp breaker and 10 gauge wire.

Jan 19, 2013 | Rheem RUUD ELD40 Water Heater,electric,40...

1 Answer

I have a ruud ruudglas pacemaker electric hot water heater. model number pem52-2b. first person to ake show in the moring has hto water for about 5mins and then it turns luke warm . when you wati about 10...


sounds like thermostat but element can be checked with a multi-meter, turn power off at fuse panel, pull one wire of element put multimeter on both screws on element using continuity setting should show continuity or beep as most do if not its burned out and needs to be replaced

Dec 01, 2012 | Water Heaters

1 Answer

No hot water from my Rheem 72-40-1, I replaced the bottom element a couple of times now in the last 4 months. I replaced the bottom element last night and for the first time opened the top cover to see...


Open following link to look at thermostat wiring
http://waterheatertimer.org/How-to-wire-water-heater-thermostats.html

If you have dual element electric water heater, then that is a 240Volt water heater.
http://waterheatertimer.org/240-v-water-heater-circuit.html

If you are replacing lower element several times, are you also cleaning out the tank?
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html

Are you installing same wattage element shown on label on side of tank: Should be 4500Watts.
http://waterheatertimer.org/Figure-Volts-Amps-Watts-for-water-heater.html

If upper element burns out, then tank will have no hot water:
http://waterheatertimer.org/How-it-works.html
http://waterheatertimer.org/How-to-test-water-heater-element.html

Add a comment for more free help.
Also take advantage of fixya expert assistance live.
For a price, expert works with you while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

Mar 05, 2011 | Rheem Water Heaters

2 Answers

I need a wireing diagram for two elament electric water heater. Mine runs on 220 volt, my question is what about the common or white wire where do i hook it to or do I not need it when running a 220 circut


Links below show specific wiring diagrams and explain 240V with two hot wires vrs 120V with hot and neutral wires.

Then if you have more questions, add a comment and I will fill in blanks:
http://waterheatertimer.org/How-to-wire-water-heater-thermostats.html
First diagram will be for your water heater.

http://waterheatertimer.org/B220C.html

Add a comment for more free help.
Also take advantage of fixya expert assistance live.
For a price, expert works with you via e-mail while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

Feb 17, 2011 | Reliance & 40 Gal Electric Mobile Home...

1 Answer

We installed a brand new Reliance Electric Hot Water Heater, but no hot water, only lukewarm! Replaced top heating element and still no hot water!! Any suggestions as to what we need to do now?


If you have some hot water from dual-element water heater, then that tells us:
Water heater is 240Volt.
Upper element is working. If upper element is not working, then heater has NO hot water.
Reset button is not tripped.
Electricity and breaker to water heater are delivering 240Volts to heater.

Remaining suspects are:
1) Bad upper or lower thermostat: Solution: replace both thermostats for 28$.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
2) Bad lower element: Solution test and replace element:
http://waterheatertimer.org/How-to-test-water-heater-element.html
http://waterheatertimer.org/How-to-replace-water-heater-element.html
3) Loose wire or loose connection: Solution: open both covers and inspect for burning. Tighten all screws very tight.
4) Bad wire: Solution: Buy cheap multimeter from Home Center and do a 30 minute troubleshoot of entire water heater before replacing any parts:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html
When testing for voltage, rotate multimeter dial to 240-250-277VAC
When testing elements or continuity, rotate multimeter dial to Ohms.

Jan 10, 2011 | RELIANCE ELECTRIC WATER HEATER

1 Answer

I put a new top thermastate, bottom thermastate, new top element, bottom element, on my electric 50 gal tank and didn't get hot water. Only 4years old. Bought a new GE 50 gal. tank and installed, even a...


Hi,

The next thing you need to do is find out whether you have 240v to the bottom element....the top will not heat till the bottom is satisfied...
An electric meter is critical when working with these units....trace the power and see where it stops....

here also are some tips that will help you...

Electric Water Heater Wiring Diagram
Electric Water Heater not Working
heatman101

Dec 04, 2010 | Rheem Water Heaters

1 Answer

I replaced the heating elements(2) and switiches(2) on my Rudd electric hot water heater. Model PES 40-2. The switghes came with several wiring diagrams.(universal) Can I get a diagram specific to my...


Residential water heaters USUALLY follow same diagram unless water heater is wired for other purpose. Multiple diagrams on instructions show available options. Take photo of wiring before removing wires on any electrical device.
Upper element.
Black wire from top of heater connects to #1 top left screw.
Red wire from top connects to #3 top right screw.
Blue wire from upper element connects to #4 middle screw on right side
Red wire from lower element connects to #4 middle screw on right side
Yellow wire from upper element connects to #2 lower left screw
Black wire from lower thermostat connects to #4 lower right screw
Upper element: Yellow and Blue wires connect to either screw
Lower element: Red wire from top connects to either screw
Lower thermostat: Black wire from top connects to top screw
Short wire between lower thermostat and lower element

http://waterheatertimer.org/images/Water-heater-wiring-w-numbe.jpg
http://waterheatertimer.org/images/Thermostats-numbered-divided-500.jpg
http://waterheatertimer.org/How-to-wire-water-heater-thermostats.html

Sep 18, 2010 | Whirlpool Water Heaters

2 Answers

Wiring for dual 30 gal heat element. changed both elements. need to put wiring back


Hi,
Go to this link and page down, it gives you the wiring diagram for a dual element hot water heater.

http://www.plumbingsupply.com/element-installation-instructions.html

I hope that this will help you to solve your problem!

Thanks for using Fixya!!

Heatman101

Dec 09, 2009 | Element Water Heaters

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