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Want to know capacitor specs. for 3 ton Janitrol Condensor Unit Fan motor capacitor and Compressor capacitor

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The capaitors should be clearly marked on the original capacitors. You will find a voltage rating and an MFD rating printed on them. The rule is you can go 10% over but never under on the ratings.

Posted on Jul 11, 2008

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What kind of capacitor do i need for 3 ton carrier ac unit


Where is the capacitor connected? To the compressor, inside fan or condenser fan motor. The value of the capacitor is stamped into the metal housing of the capacitor.There will be a number followed by the letters mfd

Aug 28, 2014 | Carrier Air Conditioners

1 Answer

Just replaced the capacitor, and reconnected. Turned power on and heard a buzzing sound from the condensor, then the fan turned on. the unit only runs for a few minutes then shuts off


The buzz is the compressor failing to start.The blue or purple wire from the compressor goes to herm on the capacitor. If it's wired right and does not stare the compressor is bad.

Jun 23, 2014 | Bryant 2 Ton 17 Seer Air Conditioning...

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I have a 25 year old Ruud A/C. The outdoor fan isn't turning and I can hear the condensor humming. There are 2 capacitors in the the electronics box that the schematic says are running capacitors. ...


The 3 microferad capacitor goes to the fan motor. The bigger one goes to the compressor. If the capacitor is swollen or pregnant looking it is shorted and needs to be changed. If it has discharged oil it has shorted out. If you can't read the mfd (microferad) you can go by the rated tonnage of the air cond for rule of thumb.

2 ton condenser = 25mfd capacitor
3 ton condenser= 35 mfd capacitor
4 ton condenser= 45 mfd
5 ton = 55 mfd

again, this is rule of thumb but should get your unit running again.

Jul 28, 2011 | Ruud Air Conditioners

1 Answer

Fan motor on condensor not starting. I have located the capacitor but unable to recognise any writing. it is a12000btu split unit.


There are two type capacitor. One for running capacitor for compressor and one for condenser fan motor by each separate capacitor. Some times two in one capacitor being used. Just check in your condenser unit, in your 2 in one capacitor, there are three parts and one has four pins and other two has each two pins where you can clip the wire.Remove existing wires and replace same with new capacitor.

Now, in this capacitor near each each part mention as "C" "H" " F". Cmeans compressor common and H means for compressor starting and F means fan starting. Be careful don't interchange any wire.
And also while replace capacitor don't add or reduce the mfd. Ex.. your existing capacitoris 35+3 mfd means 35mfd for compressor function and 3 mfd for fan motor function. Hope helpful.

Jan 09, 2011 | Air Conditioners

1 Answer

There is a yellow jumper wire from the capacitor to the contactor, it came off and I do not know where it goes on the cantactor, The A/C condensor is a Nordyne JT3BA-048KA, fan motor 621912, capacitor...


Look at the capacitor. Does it have 3 terminals or just 2. Some capacitors control the fan and the compressor. The terminal on them will be labeled Com (common), Herm (compressor) and Fan. The wire you are talking about probably goes to the Com terminal. The common terminal may also have the Run wire from the fan and compressor attached. Let me know if this doesn't help and I'll try to get a picture to help explain it.

Jun 07, 2010 | Air Conditioners

1 Answer

I have a Trane XE1200 condensor for which I bought a replacement fan motor, same specs as the original G.E. motor. The original G.E. motor was wired to a dual capacitor, which is also wired to the...


OK, locate the terminals on the capacitor marked "HERM"(Compressor lead), "FAN", and "COM".(common)

HERM and COM remian as they are.

The wire going to "FAN" (usually brown) will be placed on either terminal of the new capacitor. (This is the ((usually brown)) wire comming off of the fan motor.) An additional wire needs to be run from the other terminal of the new capacitor to the "COM" on the old capacior.

What you are doing is bypassing the fan side of the old capacitor but still using the compressor side of the old Cap.

The fan should have a wiring diagram on it to help identify the wires if there is no brown wire. The other two wires will be identified on the wiring diagram as well, but one typically goes to the contactor and the other to the board.

Sep 07, 2009 | Air Conditioners

1 Answer

Wiring Question York Diamond 90 Condensor Unit - New Capacitor


the wire diagram should tell you how. it all depends where wires lead to. be very carefull, capacitors can be dangerous. brown usaully go to fan black usaully goes to common red usaully goes to herm or compressor. it all depends where wires come from

Aug 27, 2009 | Air Conditioners

1 Answer

Goodman 3 ton outside unit fan not blowing


Motor, wiring and/or capacitor. If the sticker on the side of the motor isn't burned off you can get the motor info off that. Model numbers from the motor do little for locating the motor but my help. Best thing to do is get the AC motor specs and look up online (cheapest) or go to a motor shop. The specs you need would be as follows.
Horsepower-Such as 1/4 or 1/3
Voltage-Most likely 240/1 (240vac single phase)
Rotation-CW/CCW looking at the shaft end of the motor
Amps
Frame size

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3 Answers

A/C not working, outside fan not turning without assistance


is fan spinning fast enough it has to have alot of velocity to cool condensor coils if you haft to push fan to get going its probably shot and get new motor the ac is a sealed system and hardly ever will leak freon!!!Best of Luck to You!!! :)

Jul 02, 2009 | Bryant 462AJC021BA Air Conditioner

1 Answer

Home unit 3 ton won't run


The small capacitor is for the fan motor the other for thecompresor .You can try conecting a booster (or hot start) in paralel to the comp.capacitor .If this doesnt work you have to replace the compresor.

Mar 29, 2009 | Air Conditioners

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