Question about Electric Circuit Breaker Kit for Furnace

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FURNACE DOES,T WORK

IT IS A NORDYNE FURNACE 3500A820 IT HAS 220VOLTS ON ALL FUSES IT HAS THE 24V GOING TO THE CONTROL BOX FROM THE SMALL TRANSFORMER BUT IT DOES NOT WORK . THE BLOWER DOESN,T COME ON NOR DOES THE HEATERS.IS THERE SOMEONE THAT KNOW,S THIS HEATER

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  • grahamjr2000 Nov 26, 2008

    I FOUND THE TRANSFORMER FOR THE CONTROL BOX WAS NOT WIRED IN CORRECTLY BUT THANKS FOR TRYING

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START WITH THE THERMOSTAT ,MAKE SURE YOU HAVE POWER COMING AND GOING BACK TO THE UNIT .COULD HAVE BAD T-STAT OR BROKEN T-STAT WIRE.

Posted on Nov 23, 2008

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Posted on Jan 02, 2017

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1 Answer

I have a 1000xl heater that has no power at start up no lights or anything


Check main breaker in panel box if good check small fuse on the control board inside furnace if good check 24v transformer in furnace

Feb 12, 2015 | Williams Wall Heaters: 35,000 Btu/hr...

1 Answer

Carrier Furnace LED Good, Blower does not kick on


Likely a variable speed blower. Very common to not get 24 to the blower. Carrier is notorious for bad blowers, double check for 240, don't believe it has a separate module, but that's probably all it is. Likely have to replace entire motor. Good Luck

Mar 20, 2017 | Heating & Cooling

1 Answer

DO WE NEED TO REPLACE THE TRANSFORMER AND WIRES?\Our furnace just stopped working . Tried to check for blinking light code but the light will not even come on. We checkerd the transforme


You said you checked the fuses and all are working, does that include the fuse in the furnace circuit board? It is a plug style fuse, similiar to the ones used in the auto industry. If this fuse is good, do you have 24 v coming out of the transformer? It says you checked it, but not if it had voltage...

Another note is if there is no 24v, check the primary side to ensure that there is voltage coming into the furnace. You may have a loose wire in a junction box, not the most likely scenario, but it does happen.

Hope this helps

Mar 02, 2012 | Goodman GMS90703BXA Heater

2 Answers

HI I HAVE A QUESTION MY AC DOES NOT WORK, THE TERMOSTAT DOES NOT HAVE POWER do you no what is the problem


Hi,
Usually that is because of a blown fuse in the air handler or fuenace which ever you have or the transformer that supplies the 24v to the thermostat, also in the air handler or furnace, has gone bad...
Check to see if you have 24v at the transformer and then flow it from there...

heatman101

Aug 10, 2010 | Heating & Cooling

1 Answer

My Carrier Infinity Hybrid Furnace/HeatPump is suddenly not responding. It's been working for a few years, but today it's acting dead. All the breakers are on. At the furnace (58MVB series 100) I hear a...


The buzzing sound your hearing is a transformer that is producing 24v ac current to the main control Board, this is what controls the unit. you can check for 24v to the main board by removing the front panel access door and finding the safty shut off switch that the door touches, and depress it or tape it so you can test for voltage.. if you have 24v ac from the transformer next test at the board, if you have voltage there you may have board issues??? check the fuse on the board, make shure all connections are good... if you do not have 24v to the board your transformer is bad, have a hvac technician service this, don't attenmpt to do this yourself if you don't have experince, you could destroy your cont. board.....
hope this helps

Jan 17, 2010 | Heating & Cooling

1 Answer

My lights are flashing a 2-4 signal telling me there is a problem with the 24v system, why is the fan not kicking on when the thermastat tells it to?


The 24v signal the board is telling you is the problem is where the thermostat gets its power from without the 24v to the thermostat nothing is going to work. Check your red wire in the furnace to be sure it didn't come loose or break. Also check to see if there is a 3 or 5 amp fuse in the board that is blown. If the fuse is blown there will be no 24v. If all these problems check out then the transformer could be bad this is where the furnace gets the 24v from.

Dec 23, 2009 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

Brand new furnace, transformer opens on primary side. also seems that transformer is hotter than normal. I have checked all componets for short to ground and have replaced control board.


The short is on the 24V side...I would put a 3 amp fuse in series with the Hot 24v line before it gets to the circuit board from the transformer you will have to replace again....have a few spare fuses....after having done that./...turn the power on and call for heat...Observe what happens and what stage of the cycle you're in when the fuse blows...Exhaust fan starts...Ignitor starts to warn up....etc...I need more info...shorts are hard enough to find as it is.......does it blow the fuse immediately...usually it will go through a few stages before you get to the problem piece....Make and Model of the furnace could also be helpful to me

Oct 31, 2009 | Heating & Cooling

2 Answers

Blown Transformer heat pump


blown transformers are usually from a low voltage short the first thing i would do is wire a automotive or resetable 3amp fuse in line with the transformer so you dont blow transformer after transformer the wire coming off the transformer that say 24v take that wire a couple of inches down and cut it and install the fuse in series there
24v----------------
24v----------x----------
24v--------{3ampfuse}----------

now you can go through your low voltage wires one by one and test them unhook all the wires to your outdoor condenser at your indoor unit(furnace or airhandler) and try turning it to cool now if you blow the fuse the short is between the tstat and the indoor unit if the fuse is still good leave it on cool and hook up one wire at a time to your outdoor unit starting with R a lot of times your contactor or your defrost board will short out on you also look for pinches in wires wires with cracks in the insulation and wires touching metal this situation can be a real pain sometimes i would recommend calling a hvac company if you start to get stumped
hope this will help you

Jul 26, 2009 | Ruud UBHC Air Conditioner

1 Answer

Control suplimental system with carrier infinty system


Not really unless it is 24v control on the new stuff. However it is you can use the voltage from white (or W) at the tstat. You will be using the power supply of the carrier furnace. install a 3 amp fuse. and be prepare to replace the fuse in furnace while testing . The most you can get on those transformers is about 10 mpers @ 24v.

Mar 23, 2009 | Heating & Cooling

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