Question about Noritz 6.3 Gallon Residential Tankless Water Heater - N-063S

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Code 760 why

Flash code 760 the w/heater turn off. then turnoff electric circuit and turn on begen start but only 1 day.

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Heater element only gets 120volts. Should be 240v, correct? Water does not heat up.


Testing voltage on heater can be tricky since elements can test 120Volt to ground all all times.
This is because thermostats only turn off 1 Hot leg in the 240Volt circuit, while the other hot leg remains live. Each hot leg in 240Volt circuit is 120Volt.
http://waterheatertimer.org/B220C.html#120-240
Troubleshoot electric water heater:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html#reset
Try following things in order: Press reset button. Test elements. Replace thermostats.
http://waterheatertimer.org/How-to-test-water-heater-element.html
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
Add comment.

Apr 29, 2013 | Water Heaters

1 Answer

How to fix c2 error code on 5400


1) For Rheem tankless water heater, C2 11 is usually means bad circuit board.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

2) What is a 5400?
Is this a water heater?
What brand water heater. What type.
Is this gas or electric.
New installation, or older installation that started having problems.
Has required yearly maintenance been done?
Is the unit rated for correct altitude?
Has the water temperature been increased?

3) Add comment and include description of product, and best description of problem for possible assistance.

4) Call service technician.

Dec 30, 2012 | Water Heaters

1 Answer

Reliance 501 water heater and I cant find a way to turn it DOWN ..the water is scalding


Replace both thermostats and test both elements.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.htmlhttp://waterheatertimer.org/How-to-test-water-heater-element.html
Power is off while doing these repairs.
If water is hot, then you know that electric line and circuit breaker are working correctly.

Apr 21, 2012 | RELIANCE ELECTRIC WATER HEATER

1 Answer

My water heater error code 1 model ee3250rd055v what does this mean


Water heater is not 100% identified.
Unknown if this is gas or electric heater.

Problem posted under Whirlpool water heaters typically made by American water heater company.
Call Whirlpool 877-817-6750.
They will ask for model number and serial number located on label on side of tank.
Call is answered in USA by trained person who can answer specifics about that model, including warranty, age, regular maintenance, error codes, and possible solution for that specific model and serial number.
I have found these folks to be helpful.

Whirlpool manuals do not show that specific model:
http://www.whirlpoolwaterheaters.com/support/manuals.aspx

If you have the energy smart electric water heater with electronic control board, then error code explanation shows on the control board. Error 1 or a single flash, is start-up failure and requires tank to be full of water. Read page 10 of manual. Make sure water heater is full of water and water is coming full stream out of tub spout before turning on power. Also disconnect power from unit, make sure water heater is full, and then reconnect power to see if unit resets.
http://waterheatertimer.org/Whirlpool-Energy-Smart-electric.html
http://www.whirlpoolwaterheaters.com/downloads/6510306.pdf

Sep 12, 2011 | Whirlpool Water Heaters

1 Answer

My reliance 606 is electric 240v my problem sometimes have hot water two days and the other day have cold water


Water heaters typically don't repair themselves every other day.
That suggests something electrical is connecting and disconnecting.
Good news is ordinary tank-type electric water heaters are fully repairable by homeowner using generic parts from home center or hardware.

Could be one of three things: Problem is this, if water heater is working correctly at that moment, testing might not reveal source of trouble. Best to do testing when water heater is not working. If you don't want to test, then do step 3 below and see if problem persists, and then move out from there.

1) Circuit breaker not making full contact.
http://waterheatertimer.org/Test-electricity-to-water-heater.html
2) Loose wire/bad wire inside tank: Open covers and check for loose screws and signs of high heat and burning:
Do a full troubleshoot:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html
3) Malfunctioning thermostat. Replace both thermostats for $28
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

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

Feb 05, 2011 | RELIANCE ELECTRIC WATER HEATER

2 Answers

Water won't get hot, code c2 11


1-866-720-2076
Available between 7AM - 7PM Central Time
7 days a week

Feb 02, 2011 | Rheem Tankless Hot Water Heater...

1 Answer

Is the lower element suppose to have two legs of 120 to it? Or do i need to move a wire up top to make it 240? as it is on top element.


You have water heater with two elements.
Two-element water heaters are 240Volts.

1) Lets talk about what makes a 240Volt circuit
See basic water heater circuit:
http://waterheatertimer.org/B220C.html

Open link, and illustration at top of page is your water heater circuit

Notice that two insulated wires come from the circuit breaker and go to the water heater.
These two wires are 120volt each. When these two 120Volt wires combine, they create 240Volts
These are called hot wires because they come from the hot busbars.
There is also a bare copper wire that comes from neutral busbar.
The bare copper wire is a safeguard, and is not necessary for the 240V circuit to work.

Inside each circuit breaker box is 1 neutral busbar, and 2 hot busbars.
Open image below, and it shows typical residential breaker box
http://waterheatertimer.org/images/Inside-Main-Breaker-Box-420.jpg

In a residential home, each circuit takes two wires to complete the circuit.
For 120Volt circuit, you need 1 neutral wire and 1 hot wire to complete the circuit. These are usually a black and white wire. The bare copper wire is a safeguard.
For 240Volt circuit, you need 2 hot wires to complete the circuit, and each hot wire comes off a different busbar. These can be a black and white wire, and sometimes a black and red wire. The bare copper wire is a safeguard.

With a 240Volt water heater the two hot wires connect to the black and red wires located on top of water heater.

2) Let's talk about wiring inside a water heater.
http://waterheatertimer.org/images/WH-w-combined-530.jpg

Open image on link above, and it shows your 240volt water heater wiring.
The 2 hot wires from breaker box connect to the red and black wires on top of heater.
Inside each water heater, the wires are color-coded and will appear the same, or nearly the same, as shown on link above.
As long as your wiring appears like the image, and the hot wires from breaker box connect correctly, and the circuit breaker is working fine, then your water heater will work.

Add a comment any time.

3) More electric water heater links about water heaters, thermostats and tank wiring:
http://waterheatertimer.org/How-electric-water-heater-works.html
http://waterheatertimer.org/How-water-heater-thermostat-works.html
http://waterheatertimer.org/How-to-wire-water-heater-thermostats.html

Dec 28, 2010 | RELIANCE ELECTRIC WATER HEATER

1 Answer

The water heater does not react to lowering the temperature...water is above 130 degrees... This is a whirlpool energy smart residential water heater that was bought and installed in Mar of this year. It...


Product features show on link below
http://waterheatertimer.org/Whirlpool-Energy-Smart-electric.html

Energy smart manual shows troubleshooting chart on page 14
http://waterheatertimer.org/pdf/Whirlpool-energy-smart-electric-manual.pdf

Initially I would guess the temperature sensor is bad.
However indicator light would flash 3 times.
And since both elements have a temperature sensor, it's unlikely that both would go bad at same time.

That suggests the Self-diagnostic Control Box located on top of heater is defective.
Turn off power at the circuit breaker and see if unit resets correctly.

Manual shows 1-877-817-6750 number for Whirlpool parts and warranty.
Your unit is still under warranty, so control box and other parts should be free.

Keep in mind this water heater requires 10 gauge wire and 30 amp breaker.
If you are running smaller wire or smaller breaker, that could affect long term operation of electronics.
I guess this requirement is so voltage drop from element turning ON doesn't starve electronics in control box

On the control panel, the Red and Black wires connect to 240V from circuit breaker.
Wires appear to pull out of socket using needle nose pliers. It will be important to keep wires in same order.
Take photo of your wiring before disconnecting anything.

To order parts, you must give serial number located on label on side of tank.
Serial number will identify your specific heater to person answering phone at Whirlpool.
Installation part should come with instructions, but ask the person at Whirlpool what steps they took during training. Whirlpool rep might have helpful tip they learned during training.

Add a comment and let me know about your transaction with Whirlpool so I can pass it along.

Dec 19, 2010 | Whirlpool Water Heaters

1 Answer

My Noritz tankless will sometimes flash 5 red quick lights which indicates to me that it's not firing and I've only succeeded in restarting it at the circuit box. What servicing needs to happen to prevent...


You are getting an error code. A 5 flash error code is typically caused by voltage supply abnormalities. If you are using a generator, battery backup, or solar electricity inverter, make sure it is supplying your heater with a smooth sine wave AC voltage.

This code can also be caused by connecting jumpers inside the unit with power connected or buildup of soot on the sensors

Feb 24, 2010 | Noritz 6.3 Gallon Residential Tankless...

2 Answers

Whirlpool temp control on electric water tank


Most electric water heaters have 2 heaters - an upper and a lower, each with it's own thermostat. These are readily accessible by removing the screw covers on the side of the tank. Careful - the thermostats have 240VAC on the terminal screws (unless you have a small 120VAC heater) if the circuit breaker or fuses feeding the heater are still on - turn them off before proceeding. After removing the two screw covers and pulling back the insulation you will see temperature (screw) adjustments for the upper and lower thermostats, with a temperature indicating pointer attached to each screw. Set both thermostats to 125 degrees or so. Push the insulation back in place, replace the covers and turn the circuit breaker back on that feeds the water heater. You should have warm water within 15 minutes and hot water within a hour or so.

If the water still does not heat, then you have to troubleshoot to find the problem. With a voltmeter determine if 240VAC is actually getting to the water heater. Remember, the upper element has priority over the lower element, and if the water is cold, the upper element will try to turn on and this locks out the lower element (only one element is allowed to heat at any given time). The lower element comes on ONLY after the upper thermostat is satisfied. Therefore if the upper heating element is burned out you will never get any hot water. If you suspect this, TURN OFF THE POWER TO THE HEATER and take a resistance check of the upper element.

Nov 16, 2008 | Water Water Heaters

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