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Nobo electric wall heater won't turn on

Hi have a nobo N4EU wall panel heater. the fuse is okay, and the timer is okay, but the red light won't come on, even when i turn the thermostat dial up to full. it used to be just the one in the bedroom which intermittently refused to work; now the one in the living room does the same. completely resetting the timer using the reset button doesn't help. can you help?

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Posted on Jan 02, 2017

  • 2692 Answers

SOURCE: top thermostat reset button kicks out

The top button is connected to the top heater element  which is likely shorting out. Drain the tank below the element that the thermostat is attached to. Remove and replace the element 

Posted on Jan 24, 2009

  • 68 Answers

SOURCE: Kenmore Electric Water Heater/ Economizer 6

it usaly takes a few hours to heat up depending on water size check our breaker to see if it tripped out make sure all your wire connections are good u could take the front plate off and hit reset if you dont get hot water in a few hours ull probibly have to replace the trermostats and maby the elements its not hard to do good luck

Posted on Mar 07, 2009

co7196
  • 3433 Answers

SOURCE: can no light up a new Rheem 22V40FN water heater

Air in system. Make sure there is no sources of ignition and loosen the supply line at the heater and purge all air. Mske sure your source valve is open. then turn off yje heater after tightening the line. Let sit in off position for 15 minutes. Then turn therm knob to on slowly and then over to pilot, depress pilot button and hold a ffew seconds. Pilot should light. If so, hold for a few and then release and turn ti on position. Good Luck.

Posted on Jun 15, 2009

  • 185 Answers

SOURCE: Rheem 83xr52-2 50 gal residential water heater.

You can open the top up again. I would not turn the temp higher than 130 degrees, maximum. However, there should be above the thermostat a red button. This is where the power wires connect to the thermostats and heating elements. Sometimes this button needs to be reset, press it and discern if you hear a click sound. This means that the high temperature safety switch has tripped open and you had to manually "reset" it. There are two thermostats by the way. The water heater usually works this way. There are two thermostats and two heaters. The upper tank heater turns on first and it heats the top half of the tank. Then when the thermostat above is satisfied it then allows the bottom heater to come on and heat the bottom half of the tank. You might want to set the bottom heater thermostat as well. This is made this way because it is actually faster and more efficient to heat the top half first and the bottom half secondly. Try this first with the reset button. We could check voltages, but that requires a level of knowledge and safety that I am not sure that you are comfortable with. Pictures of the upper and lower thermostats and connections will help if the "reset" does not do the trick. By the way, not meaning or implying anything, but did you move the thermostat in the right direction? Sometimes the dials can be confusing.

Posted on Nov 28, 2010

SOURCE: I have a Reliance 501 electric water heater.

ECO reset button trips when thermostat senses high heat event over 150 degrees F, or when upper or lower thermostat is defective. There are other causes: if tank access covers and insulation are missing, and when element is shorted to ground in center of element so that element continues heating through one leg of 240V circuit after thermostat turns off.

Ordinary tank-type electric water heater is fully repairable by homeowner using generic parts from hardware store or home center.

1) Replace upper and lower thermostat for about $28, and if problem persists, then do troubleshoot shown in step 2 below.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

2) Take 30 minutes and troubleshoot before replacing any parts.
Troubleshoot requires cheap multimeter from home center.
Install battery in multimeter.
When testing voltage, rotate multimeter dial to 240 or 250 or 277 VAC.
When testing continuity or elements, rotate multimeter dial to ohms (upside down horseshoe symbol is ohms)
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

Posted on Jan 13, 2011

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1 Answer

Electric Water Heater blows fuse, but only every few years


Your residential water heater is not 9000 watts. Or it would blow the fuse every day and melt the wire. Instead, you have dual-element non-simultaneous 4500 watt water heater.
http://waterhatertimer.org/How-it-works.html
http://waterheatertimer.org/Figure-Volts-Amps-Watts-for-water-heater.html
Look at label for 'total connected watts'
http://waterheatertimer.org/images/Whirlpool-energy-smart-watt-rating-IMG_2600.jpg
25 amp breaker or fuse and 10 gauge wire is minimum acceptable for 4500 watt water heater.
http://waterheatertimer.org/Color-code-wire.html
Troubleshoot blowing breaker or fuse:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html#trip-breaker
Why does it blow fuse once each year?? I don't know.
Fuses and breakers trip when overheating occurs on wire.
Each fuse or breaker is rated for heat, and over time, it will get hot and then cool and then get hot again ... this action weakens fuse or breaker.
To solve problem: install 3500 watt elements (and clean sediment out of tank). Wire will run cooler, and fuse will last longer. Whole fuse box will demand less power, and run cooler, and will last longer as a result. So there is less stress on electric service panel.
http://waterheatertimer.org/How-to-replace-water-heater-element.html
3500 watt element will heat water to same temperature, but takes longer. For example: 4500 watt heats 21 gallons per hour, while 3500 watt heats 17 gallons per hour.

Apr 28, 2013 | Water Heaters

1 Answer

Water heater timer not working or bad wiring?


10/15/2012
Hi Liz.
This is a live answer. And you can add a comment after trying following step, and I will comment back..
Replace battery, and then reset the timer using reset button located to left of display screen.
http://waterheatertimer.org/pdf/eh40-english.pdf

Oct 15, 2012 | Intermatic EH40 - Electronic Water Heater...

1 Answer

Reliant 501 Natural Gas won't stay lit


Reliance water heater?
Thermocouple is good if the pilot stays lit continuously.

501 is older model. Unknown if this unit has FVIR protection and sealed combustion chamber or open air intake on front of unit.
http://waterheatertimer.org/pdf/Reliance-2006-Service-Handbook.pdf

With FVIR protection:
Get more fresh air to the unit.
Clean the flame arrestor screen.
Test and replace the thermocouple:
http://waterheatertimer.org/How-to-test-water-heater-thermocouple.html
Inspect and clean burner and combustion parts
Test gas pressure, bleed air out of gas line.
Replace gas control valve.
Test draft air by lighting match and see if smoke is pulled into the vent pipe at draft hood on top of tank.

Aug 20, 2012 | Water Heaters

1 Answer

GE (Rheem) SmartShield Water Heater. it rained on the hot water heater and now the pilot won't light. Any ideas?


Does it have an electric ignition? If so, remove the pilot light access panel, blow inside the chamber with a hair dryer. Do this until there is no more moisture inside. Then follow the lighting instructions. Try this even if it's a match start. Thanks and please rate.

Sep 05, 2011 | General Electric Water Heaters

1 Answer

Hot water tank - Bock model 51E Was working perfectly until a couple hours ago and then stopped. I have a red light indicator on and I've pressed the red button reset and the motor started up for...


Call service technician.
Call Boch Phone: 608/257-2225
http://www.bockwaterheaters.com/technical/engineering.html

I don't see a service manual posted on internet.
Without a service manual showing ohm-readings for testing different parts, you are left guessing which part is problem.
Most water heater manuals today recommend yearly service to catch up on most causes for failure including air in fuel line, dirty or corroded burner parts, defective sensor, loose connection, etc.

Jul 30, 2011 | RTO Bock Water Heaters 51E 50 gal 152,000...

1 Answer

Gas works fine -gets hot water. But electric will not give hot water, only cold. How do you remove the heating element? It is on the inside of trailer in a black box? Model GC6AA-10E Atwood.


I'm thinking when you say black box, that you also have a wall switch with a symbol like a lightning bolt and you switch that on as well as checked breaker panel to make sure breaker is on as well.
With that said, you'll have 2 of 3/8" nuts holding that black cover on. Remove top one and loosen bottom one and pull cover off. ( Be sure power is off to unit while doing this.) You'll find the element in behind it. Put a voltmeter on black to element (red probe or alligator clip) and (black probe) to ground where you see green wire connected to tank. Turn breaker on then switch at wall. You should hear a relay click and 120 Volts should show at black wire ( red probe) . If you've got 120 volts there, shut off all power, drain water heater and replace element.

Jul 04, 2011 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

No hot water.complex shut off water for a day.When they did I had no hot water.have checked fuse panel,and tested continuity to heater and thermostat all test OK0=1 40 gal elec. w.What di i do now? Thx ...


You checked for continuity but, can you check for power? Is there any way that it has a timer or secondary shut off switch?. When you take off the panel(s), on the thermostat, there shoukd be a red reset button. Have you tried pushing that? There really isn't that much that can go wrong with these things. Does it plug in or, is it hard wired. If you have fuses and not breakers, the fuse can look good but be bad so, you may want to try a different fuse, 30 amp. Let me know what you come up with.
Dave

Jun 15, 2011 | Rheem Water Heaters

1 Answer

TIMER HAS STOPPED ROTATING, DO I NEED A NEW TIMER UNIT OR CAN THIS BE REPAIRED. SHOULD I USE WD40. PLEASE EMAIL susan.labi@hotmail.co.uk THANK YOU


1) It depends on timer you have.
Intermatic-brand box timers used to control water heaters, outdoor signs, pool pumps and parking lot lights generally have replaceable clock motor.
paragon-brand clock motors are not available.
Tork-brand clock motors are more difficult to find, depending on model number.
In-wall timers & plug-in timers are not repairable, and you buy a new timer.

2) Add a comment and describe your timer.

3) ook on following links to help identify timer.
http://waterheatertimer.org/Woods-timers-and-manuals.html
http://waterheatertimer.org/GE-timers-and-manuals.html
http://waterheatertimer.org/UPM-timers-and-manuals.html
http://waterheatertimer.org/Compare-timers.html

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

Jan 14, 2011 | Water Heaters

2 Answers

I want to add an under-counter auxiliary water heater to my 15A dishwasher circuit. I need to install some sort of relay to cut out the water heater when the dishwasher is being run, to avoid overloading...


If I understand correctly you have 15 amp breaker with 14gauge wire.
Total watt capacity of 15 amp breaker is recommended at 80% rated load = 12 amps

You want to connect two appliances to same 15 amp line.
1) You have 6 amp Dishwasher that draws 720 Watts
2) You have under the counter water heater with 1500 Watt element that draws 12.5 amps.
3) Combined load is 18.5 Amps and 2220 Watts, approximately
So you do not want dishwasher and water heater turned on at same time.
Makes good sense.

Solutions:
> Easiest thing would be to put water heater on ordinary wall switch located inside sink cabinet.
Back when garbage disposals first came out, garbage disposal switch was inside sink cabinet. You opened cabine door and flipped the switch.
> Next solution would be to put water heater on a timer located under the sink. There are different timers. In-wall timers and box-type

In-wall timer would need relay/contactor
A battery operated timer like the ST01C would not need to be reset after power outage
http://waterheatertimer.org/Programmable.html
Here are instruction pages for selecting and installing the relay/contactor.
http://waterheatertimer.org/H230A.html
http://waterheatertimer.org/Install.html
Add a comment any time.

Box-type timer like T101 120Volt timer. This timer needs no relay/contactor.
http://waterheatertimer.org/How-to-wire-T104-Intermatic-timer.html#T101
Timer needs to be reset after power outage, but operates on ordinary 120V power, and is simple to install.

> There is no easy way to wire the dishwasher and water heater together so one is certain not to operate when other is turned on. There are likely electronic control panels for that project. But since you know the hours when dishwasher is likely to be ON, then set water heater timer to turn OFF during those hours. Water inside tank will stay hot for a couple hours, so there is no loss.

It sounds like you are a solid electrician.
If needed, add comment any time for more assistance.

Dec 14, 2010 | Rheem 2.5 Gallon Electric 120V Water...

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