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HOW TO CHANGE A FUSE ON NORDYNE SPLIT SYSTEM

Where is the fuse? I think that it may have blown when I was installing a new thermostat.

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  • 18 Answers

If there is a fuse it will be on the control board inside the air handler. if there is no fuse then it would have ruined the control transformer.

Posted on Dec 03, 2012

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Posted on Jan 02, 2017

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jumptrout51
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SOURCE: Nordyne electric furnace heats up but fan won't

If the fan runs in the ON setting then you have a bad fan relay for the heat mode.
Did you install the t-stat before or after the problem?
If after, you have a bad fan relay.

Posted on Feb 21, 2009

jumptrout51
  • 3361 Answers

SOURCE: Loud noise

It is probably a rotary compressor unit.
They tend to make a start up noise.
Some technicians advocate adding a booster starting device to help the compressor start more quickly, thereby reducing startup noise.

Posted on Mar 12, 2009

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1 Answer

MY outside unit will not kick on now I just had it filled and seem to not want to kick on so I'm thinking it a short or the new t-stat that was just replace over the winter heat side works fine


Turn breaker off. Wire nut the red, green and yellow. Turn breaker on. Check outside. If unit is running either your tstat is not setup properly or it is bad

Jun 17, 2016 | Intertherm Heating & Cooling

1 Answer

DO I NEED TO REPLACE THE FUSE TO THE CONDENSER OUTSIDE IN THE BOX?


If it's not working, you can check the fuse. If the fuse is blown, you need to check the system. Simply replacing a blown fuse will likely just blow the new fuse.

Jun 12, 2015 | Sanyo Split System Air Conditioner

1 Answer

Nordyne Split System Blower Won't Start


It's the fan motor. A relay problem would cause the motor not to run at all.

May 08, 2017 | Heating & Cooling

1 Answer

I changed the thermostat and then the ac stopped working


if this is a split system, go to the furnace or air handler. Shut off the power, remove blower door and find where thermostat wires go to control module.

Remove thermostat wires writing down where each one goes. Make a jumper wire and install it between r and y or r and y1.Put everything back together and turn on power. IF blower motor and ac start, you have
a low voltage wiring or thermostat problem.

If nothing happens then you either have no power to furnace, transformer
could be bad or you have blown a little 3amp automotive fuse that is
installed on the control board.

Jun 30, 2010 | Carrier 38CKC042 Air Conditioner

1 Answer

Removed honeywell thermostat from new home to install a new honeywell programmable thermostat. Couldnt get the new one to work so reinstalled the old one and it wont work. Checked breaker already, cant...


Do you have a model number for the new and old thermostat? Do you have a split system? This means you have a heater in the house and a condensing unit somewhere outside of the house. Let me know if you have a packaged unit or a split system and we can go from there. I might just be a blown fuse on you board, but I need to know what you have so we can start to trace things out.

May 11, 2010 | Honeywell Programmable Thermostat Heater

1 Answer

Thermostat wires dead


If you have a split system (an air handler that blows air into your house and an outdoor unit that has the compressor and condenser coil/fan), then you should look in the electrical compartment of your indoor unit and see if you can locate a low voltage fuse. This is usually located on the control board or between the transformer and "R". Make sure you shut off the power to your indoor unit first as they will still be 240volts available there. If the fuse is blown, replace it and reinstall your thermostat. Turn the power back on. If the thermostat is wired properly with no damaged wires in the process, the system should work fine.
If there is NO fuse, then check the low voltage side of your transformer using a Voltmeter. You will have to have the power on to perform this test. Be very careful. On one side of the transformer, you will read 240volts. The other side should read 24 volts. If there is no voltage on the 24volt side, you blew the transformer and will need to replace it.
Check these items first. If you need further assistance, let us know and we will dig a lil' deeper. :-)
24%20v%20transformer.jpgpicture of a typical transformer.

The low voltage fuse could be a glass cartridge fuse (systems typically older than 15 - 20 years old). Newer systems use the same style fuses that are used in your truck or car (ATC type).

Apr 08, 2010 | Hunter 30124 Air Conditioner

1 Answer

No power to the tstat on my ac/heat unit


Do you have split system or what If it is the split system you proable will find a transformer bad.Or a fuse blown on the transformer.

Apr 07, 2009 | Heating & Cooling

1 Answer

I have a intertherm model feh-017h electric


It's the heat kit in the unit that is causing the problem. You need to do a continuity test on it to eleminate that they have shorted. This is the only thing in an electric furnace that will blow a fuse on it. Intertherm is a Nordyne product for manufactured homes. Of coarse they still sell them! I am a Nordyne dealer. Also a sequencer can not cause a fuse to blow. The service guy just wants to make money from you by installing a new unit. You can either re-wire the heat kit or you can purchase a new one and have it installed. If you are referring to the heat kit for 159.00, then that's a fair price for it if you are a non licensed person.

Mar 17, 2009 | Heating & Cooling

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