Tip & How-To about Plumbing

Hot water heater keeps blowing curcuit breaker.

Most likely you have a bad heater, element or regulator, first turn off the breaker and look at the wires in the connector box on the heater, if they have no stripped insulation make sure the wire nuts are tight and are touching metal on the end of the wires, if there is insulation between the wires remove it.
Next remove the covers off the heating elements and with an ohm meter on ohms and power off disconnect one wire from heating element touch one end of the element to the metal on the heater and the other end of the tester on the heating element screw, check both screws for contact tact for this test, if you get a reading the element is bad.
This does happenon new heaters as well as old. Next try the bottom heating element taking off one wire and doing the same, if you get a reading there then it's the element that’s bad. Next touch the ohm meter to the two screws with one wire on the element not touching the one disconnected wire you should get a slight reading, the meter will move maybe an inch, however if it moves all away over to the opposite side it means the element is shorted out and will have to be replaced,
At this time if it does any of the above call the company you bought it from it's under warranty. Put it back together and let them replace it at no charge to you.
However if you want to fix it yourself them supplying the part turn off the heater water and power and drain the tank then buy the socket that fits the element then unscrew it and replace it with a new one. Once it is installed open the water valve on the hot side in the bathroom or kitchen depending whichever is closest and wait for all air to be out of the system.

Once the air is out then turn heater back on. Hydrogen sulfide gas can cause an explosion that is why it is important to have the tank full before turning on power to the heating element. This is especially so for gas operated heaters and where you have well water.

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coleman heater 3500a820 lots of smoke and now only blower works no heat


I am not sure about the heater type, but likely the heater element controller shorted out or the heater elements shorted - hence the black around where the wires go into the electric box. If you're lucky, the wires shorted to the side of the box. With the power off, open up the electrical box, mark which wires go where, remove them from the board, remove the wires from the electric box, then using electrical tape, tape up the exposed ends of the wires. Spread them out so they do not touch each other. Turn on the 60 amp breaker - if it trips, then your wires are bad and need replaced. If it does not trip, then the problem is with the heater. Do not let anyone near the wires when testing them! Don't forget to turn off the breaker if it does not trip. Again, turn off the breaker if it did not trip.

Oct 18, 2012 | Coleman Heating & Cooling

1 Answer

i replaced all parts but water heated won't get hot


You have electric water heater.
You replaced elements and thermostats but heater still won't work.
And tank was completely full of water, and water was running out of a faucet before turning power ON.
If elements are not fully immersed in water, they will instantly burn out.
If upper element is burned out, then tank will have NO hot water.
If lower element is burned out, and upper element is not burned out, then tank will have some hot water.
http://waterheatertimer.org/How-to-test-water-heater-element.html
http://waterheatertimer.org/How-it-works.html

If elements did not burn out, then that leaves 1 main suspect: the electricity.

1) Push in ECO red reset button on upper thermostat. If ECO is tripped out, then heater will not work.

2) Click circuit breaker all the way one direction and then back the other direction to make sure breaker is latched.

3) If tank has 2 elements, then it is 240volt.
If 1 leg of 240Volt circuit is not working, then 240V appliance will not work.
240Volt circuit needs both hot wires to complete the circuit:
http://waterheatertimer.org/How-to-wire-EH40-hot-water-heater-timer.html#120-240

Buy cheap multimeter from Home Center and set dial to 240-250-277VAC
Tape tester leads to woods sticks to keep hands away from power.
Power is ON
Test across top 2 screws on upper element should show 220-240 volts.
If you have 240 at top two screws, then skip down to step 6.
If no reading across top two screws, then move to top of tank.

4) Open connection point where wire connects to heater.
Test across both insulated wires should get reading of 220-240 volts.
If no reading, move to circuit breaker box.

5) Mark water heater breaker.
Turn off all breakers except water heater breaker and main breaker. (and breaker to light fixture where box is located)
Do not hold or touch or lean against anything metal.
Stand on dry boards and wear dry clothes.
If main breaker is OFF, the big wires that connect to main breaker are still HOT.

Remove box cover.
240Volt breaker has 2 wires connected with screws.
Test across both screws for 240Volt.
See if wires are loose.
If there is no reading, then breaker is not working on one leg.
To double check, move water heater wires to another same-size 240V breaker and then put ear against water heater to listen for bubbly-fizzing sound.

6) If you are getting 240 to water heater, then wire inside tank could be loose.
Do 30 minute troubleshoot:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

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.

Jan 09, 2011 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

no hot water


Electric water heater can be repaired by homeowner.

Four things can cause NO hot water:
1) ECO red reset button tripped. Remove top cover on water heater, push red reset button on thermostat. Put insulation and cover back over thermostat.
2) Circuit breaker is tripped, circuit breaker bad, or wire loose in breaker box. Turn breaker on-off and listen for crackling or fizzing sound, and burned smell. Test breaker for 220Volts. Test top two screws on upper thermostat to see if water heater has electricity.
3) Bad upper thermostat. Replace upper thermostat.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
4) Bad upper element. Test upper element.
http://waterheatertimer.org/How-to-test-water-heater-element.html

Nov 22, 2010 | Reliance WATER HEATER CO #9-40-DKRT 40GAL...

1 Answer

OUR WATER HEATER IS BLOWING FUSES ..


1) Turn off power before touching water heater that is shorting or wet or was flooded.
2) Circuit breakers & fuses blow because of heat. A short will cause heat. Tighten screws on terminals inside box, listen for crackling sound/burning smell from loose-fitting parts.
3) Easy test for circuit breakers: move water heater wires to another same-size breaker. If same-size does not blow, then problem is breaker.
4) A short between fuse box and water heater could be gnawed electrical wire. Inspect wire.
5) Wires have size markings. 5500 watt water heater needs #10 wire. 4500 watt water heater needs #10 wire but can work with smaller #12 if distance is not long. See label on side of heater for wattage, voltage, etc. Element wattage is water heater wattage even with 2 elements.
http://waterheatertimer.org/Figure-Volts-Amps-Watts-for-water-heater.html
6) Short inside water heater can be elements or thermostat. Open covers and inspect parts for burning. Screws should be very tight against copper wire. Sediment could fill bottom of water heater cause lower element to short.
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http://waterheatertimer.org/How-to-troubleshoot-electric-water-heater.html

Sep 16, 2010 | Little Giant Water Heaters

3 Answers

water heater keeps popin the breaker replaces breaker still no good. new heater just installed all wires are good


I assume this is a 240 volt water heater that runs on a 30 amp circuit. Read the instructions that came with the new water heater to be sure. If the wires are connected correctly then you have a defective water heater. Let's first make sure it is wired correctly. Turn the breaker off and take a look at it. It must be a 30 Amp breaker and the wires going to the water heater must be 10/2 with ground. This is an orange wire. If you cannot see the water heater from the service panel it must be wired to a disconnect box. Look at the breaker and make sure the red & black wires are tightly connected to the double pole breaker and the copper wire is connected to the ground bar. At the disconnect box (if applicable) the red/black wires from the service panel must be connect to LINE and ground to ground bar. The wire going to the water heater from the disconnect box is connected to LOAD. It is easy to get these mixed up because they are not always in the same location and are hard to read on some disconnect boxes. Look carefully and make sure they are correct. At the water heater you connect Black to Black and Red to Red. Make sure the ground is connected tightly and none of the wires are touching each other. Use wire nuts and then tape the connections with electrical tape. You should not have applied power to the water heater until it was full of water. If you did then your burnt out the electrodes. I would suspect you have a short somewhere or the water heater is defective.

Dec 10, 2009 | Cars & Trucks

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