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Breaker tripping when furnace is on

Look at the coils they look ok and the fuse box looks alright to the main breaker box gets real hot when the furnace is on for about 15 min then blows the fuse replaced the two 60 amp fuses and also the main 200 amp but still goes out some one said they might have put the wire to the furnace backwards but it the same problem as before wondering if the little dieod that in the mid of the unit on the blow box might be bad the one on the top looks alright but the one on the bottom looks lik it has some stuff on it and if theres a tool or meter that has a surge reader on it to tell me what breaker it is

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Posted on Jan 05, 2009

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Posted on Jan 02, 2017

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Switched bottom oven on, then noticed it had tripped fuse for cooker in main fuse box. Swithed it back on and it wouldn't heat up. The fan and light were ok! Top ove? grill works ok still.


sounds like you have a heating element burned out. Look real close at the heating elements and you may see a hole burned in the metal tube. This is a sure sign of a bad element. Some elements are easy to unplug. Others a real pain. Always unplug and or turnoff breaker prior to unscrewing anything. If you fine the bad element just unplug and other element may work OK. Best to get your model number and search net for new element.

May 30, 2011 | Ovens

1 Answer

Hi i have a rheem super quiet 80 attic unit.. the heat is not working.. the unit will not power up and circuit board is not lit


Hello, if the furnace does not work at all the main thing to check is your line supply voltage. low voltage and fuses. Make sure the circuit breaker is not tripped and verify that you are getting 120 volts to the integrated control board at the L1 nd neutral terminal at the board, if not most likely the breaker is tripped, secondly make sure that the fuse on the unit is good, usually it will be on the integrated control board if it is a newer furnace or on the side of the furnace at the switch box if it is a older furnace, make sure the fuse reads 0 ohms with your meter. Lastly check the transformer, check Resistance on both sides of the transformer and you should get resistance, if not replace transformer, let me know if you have any further questions I will be glad to assist you.

Feb 05, 2011 | Heating & Cooling

1 Answer

Had a power cut last night boiler stop working been and looked it seems to *** to life but no hot water and there seems to be no water presser


I am contacting you because I know you need to do something fast. Check your main fuse box for the house and try resetting the circuit breaker which should be labeled as a furnance or heater.

Then if no success look if you have a circuit board for the Solenoids on the water flow. Some of the modern circuit panels will have a small LED light which flashes Codes for normal running and for problems. On that circuit board you should have a small fuse. It will be a short Automotive style fuse of maybe 3 AMPs. The capacity is printed on one of the ends.

If the wire inside the fuse is blown you will need a new fuse so buy a couple to keep. Turn off the Breaker until you replace the fuse and then trip the Breaker and see what happens. You could have had a Solenoid coil fry before the fuse blew. I would then check the Solenoid coils with an Ohmmeter for continuity.

At this point and in need, it will probably be faster for you to get a specific part from an A/C heating company with a Service call. The easy stuff is out of the way and the Heating and Cooling companies have you at a disadvantage. You need to do this quick.

I hope my solution is very helpful to you and that tripping the main breaker was the only problem.

Dec 24, 2010 | Heating & Cooling

3 Answers

?-Is it ok to swap wires within fuse box if they amps on the breakers are the same? See details below... Ok, so I have a Sylvania fuse box. Both my A/C unit and my Range run off of thin, dual 40amp...


Yes it is OK, Your gfi's are real sensitive, anything can trip them off, a florescent light will trip them off. Anything not grounded in the circuit will cause it to trip. Take care of that later or don't use it. The 40 amps, I would just forget about the stove for now, get the ac going, cook in the microwave. But swapping the breaker is no big deal. Hope this helps.

Jul 17, 2010 | Sylvania Circuit Breaker - Zinsco/ RC 40...

1 Answer

THERMOSTAT HAS NO POWER


Hi, yes the thermostat feed does come off the furnace from the transformer. That's where it gets it 24 volt supply, 120 volts is stepped down to 24 volts for the controls. If it trips the main breaker, it may be a matter of the wires that feed the breaker are loose and this will cause the breaker to over heat and trip. Shut it off and tighten the wires.The breaker may also be weak. This is a high voltage problem. So, anything that runs off of this breaker can cause it to trip, like the blower motor may be drawing to much amperage. Make sure there is no lint build up on the motor or in the windings or on the blower wheel also. My guess would be the breaker is burned or wires are loose creating enough heat to trip it at times. This is where you will need to start. Keep me posted. If you have a amprobe you can check the rated amps on the data plate of all motors and see what they are drawing under a load. If not, you will have to see whats getting hot, breaker, motors ect. Keep me updated as you will be able to find the problem. Like I said, my bet would be the breaker is going. You can also kill power and pull the breaker to look for any hot or burned spots on it. Concentrate there first.
Best of luck, you should find it quickly.
Shastalaker7

May 24, 2010 | Heating & Cooling

1 Answer

Throwing breaker


Throwing the MAIN BREAKER should not happen. Calculate the distance to your main box. Tell me the wire gauge or breaker amperage. Whatever you do, do not get a larger breaker! If its a breaker on this unit Its probably doa with current leak possibly. DO NOT USE fire hazzard IF SHE TRIPS!!! let me know if its your main breaker inthe house. Hopefully you dont have crappy cloth wiring.

Aug 17, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

My 200 amp Siemens main electric box is heating


This is a dangerous situation! There is a short in the furnace. It is NOT a breaker problem! You need to check the current draw in the furnace circuit, This requires an Amprobe meter. If you don't have one, contact a technician at once! You have a fire hazard!

Ray

Dec 15, 2008 | Fahrenheat LFP6152 Halogen Baseboard...

3 Answers

ROOF AC UNIT ISSUES


Ice on the coil is caused by 3 things; 1, low freon charge. 2, inadequate air flow across the coil, this can be a filter or dirty coil (I think you addressed these) or the fan isn't blowing enough air over the coil. 3, the unit is running continuously. A heat pump has another cause, that is something defective in the defrost system, like the sensor, reversing valve, control board or relay. If the breaker is tripping its because the compressor is over amping. There can be an obstruction blocking the fan or something like #2. Or the compressor is going out. If the breaker doesn't trip on other settings, like cool, but trips on heat, then I would look at the airflow.

Mar 14, 2008 | Dometic Rooftop RV Air Conditioner

2 Answers

Electrical - Air Conditioning


Ben, you are on the right track. To upgrade the breaker, first look at the main house breaker panel and determine if allowing more current through main breaker will be taxing it too highly (will 20 more amps exceed my main breaker limit...what is the main breaker current trip at?) Then look at the wire size leading away from the 40 amp breaker to outside. If it is 6 gage copper or 4 gage copper-clad aluminum wire, you are ok to upgrade. Any smaller wire size could be unhealthy.

Sep 03, 2007 | Heating & Cooling

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