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Outside unit wont start - Heating & Cooling

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Hi,

Here is a tip about troubleshooting your air conditioner...
There are many things that can cause your air conditioner not to cool…

Air Conditioner Trouble -Review the Possibilities
http://www.fixya.com/support/r3571569-air_conditioner_trouble_review_the_possi

heatman101

Posted on Aug 22, 2010

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1 Answer

Heat pump i dont know the model


The "R" terminal on the back of the stat should be 24 volt supply to the stat. For a heat pump, when the stat calls for heat, the "W" terminal goes hot (24 V) and should actuate the reversing valve and start the outside unit for heat. when the stat calls for cooling, The "Y" terminal goes hot and starts the outside unit without the reversing valve. The heat strip is used to temper the air while the outside coil is defrosting when in heating. You need an OHM meter to test for a short in the heat strip. A lot of installers are wiring it to heat all the time when in the heating mode if the heat output is too low on really cold days. Try jumping "R" to "Y" and the outside unit should start. Disconnect the heat strip from power while testing. This is really brief, its a big subject. Good luck.

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Brand new furnace wont start its a aruf 14 electric air handler with a 10 amp heater coil


the 3 amp fuse protects low voltage side of transformer. if it's blowing on a call for cooling wire pair going to outside unit bad or contactor in outside unit.

Nov 18, 2013 | Goodman Heating & Cooling

1 Answer

Outside unit wont start


compressor probably out. check connect at outside breaker box.

Sep 02, 2013 | Ruud UAKA042 Air Conditioner

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How to put my tcl air conditioner on heat


Make sure the unit is a reverse cycle first... It may be a cooling only modle. If its a heat ( reverse cycle ) unit, there will be a symbol which looks like a star, the machine will generally sit with the outside unit running for up to 5 mins before the indoor unit starts. ( Preheat mode) If the unit doesnt start, possibly a failed air or pipe sensor. If it starts but wont heat, possibly a faulty reversing valve coil. Cheers.

Jun 05, 2011 | Heating & Cooling

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My Goodman gsh103301ab. The fan in the outside unit will not come on. The heat is still coming out the the vents but, just don't think that sounds right. Is this suppose to happen?


If it's in cool mode, the outside fan definitely should run to remove the heat. If it's heat mode the outside fan will start only when pressure build up. If it's problem with condenser fan definitely the breaker or fuse will be blown when the amphs increased.

Dec 08, 2010 | Goodman CKL36AR36 Air Conditioner

1 Answer

Compressor wont start, unit on led flashing 5 times


Hi!!
That means that the unit needs servicing, try cleaning the outside coils and cleaning the filter on the inside unit.
Don't forget to rate this post!!

Oct 01, 2010 | Carrier 36KCARMS Air Conditioner

1 Answer

Unit outside wont come on


first check breaker if breaker is not tripped check disconnect at outside unit use a volt meter to check voltage at disconnect

Aug 25, 2009 | Heating & Cooling

1 Answer

Ac unit will not come on


pull the fuse/breaker disconnect panel outside by unit and main breaker inside,remove compressor access panel,re-power unit trace your thermostat wires to the terminals by compressor and short the two term together and see if unit starts,sounds as though you broke wire in more than one place.good luck be careful doing this,its 240 volts at most compressors on a central A/C

Aug 02, 2009 | Heating & Cooling

1 Answer

Goodman Air (outside unit)


was there any refrigerant loss? "bumping" that results in movng usualy causes a leak.If the system is totally empty, It shouldn't start.. If it did major oh nos! will appear. Does it not start all? and was it running when it got thumped? May have to call a tech out on it. Sorry.

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2 Answers

AC wont kick on....


The first thing to check is your breaker box. There should be one double breaker for the air handler unit, that's the inside unit, and one double breaker for the compressor, that's the outside unit. Check both breakers. If you're not sure if they've be thrown, click them toward the outside of the breaker box (off position) and then click them toward the inside of the breaker box (on position). If the breakers are on and you still are not getting any A/C take a look at your compressor, (outside unit). If the fan is running at least you're getting power. However, your compressor down inside the unit may not be getting power or it may need to be replaced. The compressor has a start-up cap. If this cap goes bad or the wires from this cap fry or corrode away, this will also keep the compressor from starting but the fan will still run. If the fan is not running it could be caused by a faulty relay inside the compressor cabinet. This relay is supposed to open and close based on a low voltage signal from the thermostat. I believe it's roughly 24 volts. This relay switches on and off the 240 volts for the compressor and the compressor fan. Often this relay goes bad or the wires leading up to it fry. If you?re going to work on the unit yourself make sure all power is shut off. There should be a shutoff switch on the outside wall near the compressor. I?d also shut the breakers off.

Jun 12, 2009 | Honeywell Programmable Thermostat Heater

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