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Capicator Not sure if Capicator for goodman ck49-1b is correct, System not running but has power from Disconnect. Currently had two differant Capicators in the unit a 440 volt oval cap with two post and a 370 oval cap with two post Schemtics show a round Cap with fan, herm and Compressor post I guess this is most likely the problem but not certain if it requires a 370 volt cap or the 440 round cap?

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Re: Capicator

Sounds like someone has replaced the origional split cap (fan,herm,common..not compressor) with two seperate units. The voltage doesnt really matter its the MFD rating that will need to be the same. The larger #mfd capacitor will be the compressor's and the smaller the fan motors' capacitor. Since it does have two seperate caps than the liklihood that they are your problem is slim i would look elsewhere.

Posted on Jan 20, 2008

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1 Answer

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Try This,
If The A/C Unit Compressor Is Humming, Not Running
The A/C Unit Fan Is Humming, Not Running.
Replace The Dual Capicator Inside The Unit Outside,

Remove Access Door Panel
You Will See The Compressor 24VAC Coil/Contactor, This Is For The Compressor,
What Turn's It On Is The 24VAC From Your Thermostat, These's Are OPEN Contact
Relay's, They Should Be Replaced Every 5yrs, As Well As The Dual Capacitor.

Suspecting Your Dual Capactior Is Bad,
BEFORE ENTERING Access Panel, Kill The Breaker Feeding Your
Outside A/C Unit, and/or RAISE Thermostat So A/C Unit Will Not Come On, Then,There Might Be A Elec Box Located Next To The Unit, Open The Cover, Pull The "T" Handle, Remove From Box, This Removes All Electrical Power From Outside Unit.
NOW WAIT 15 Minutes, [Let Capactior Power Drained/Down/out.]
NOW IT IS SAFE TO Preform The Next Part.

Remove The Access panel For The Electrical Compartment,
You Will See a Metal Looking Cylinder, Not Round, But Oval Shape, Will Have Wire's
Going To Top Of It, Remove The Clamp Securing This To The A/C Unit Frame.
Move The Capacitor So You Can See The TOP Of It,
You Will See "HERM" on One Side
COM in the Middle
FAN On The Other Side.
Write Down The Color Wire[s] Going To Each Connection.
Now Remove The Wire's From The Capacitor,
The Capacitor Has printed/Label On It
This Show's Voltage and MFD Ratings.
Take This To Your Local Heating & Air Supply Company, Ask For A Direct
Replacement, Based On The Data Listed On It.
You Might Get One Back Looking Different, But The Voltage/MFD's Will Be The Same.
Installed The Replacement Capacitor, W/ Correct Colored Wires.
Remount Capactior On A/C Unit, Make Sure It Cannot Move, Fallout.
Re-Install Access Cover
Turn ALL Power back Onto Unit
Set Thermostat So Unit Should Come On, Should Be Working.

If You Can, Replace 24VAC Compressor Contact/Relay,
Like The Old Cars, Point's Are Pitted After Long Use, Causing Problem[s].

If The Unit Is Working, Here's What Happened:
The Capacitor Got Weak or Failed,
"HERM" supplies VAC To START The A/C Compressor
"FAN" Supplies Voltage AC To Start The A/C Unit's Fan
"COM" Is The Common Electrical Wire Circuit Between The Two [Herm &Fan]

The Capacitor Is Like A Starting Circuit, A Good Capacitor Will Start The
HERM [Compressor] & FAN FAST, a Weak One Will Cause A DELAY
Before Acheiving TOP RPM/Speed, This Cost More on The Electric Bill &
Makes The Compressor Motor & Fan Motor Work Harder, Causing
Early Failure's Of The Motor[s].

You Should Replace Both The 24Vac Relay Contactor & Capacitor
Every 5Yrs, Whether The Unit Is Working Or Not.
These's Are The HEART Of The System, They Get Weak, Will Hurt Rest
Of The Major Parts Of Your A/C System.

Hope This Help's
Note: I'am EPA Certified Universal Section 608 Since 1994,
I Have A full Time Job, A/C Work Is Sideline Work,
I'am a Industrical Electrician/Instrumentation Engr Tech, For Starter's,
If You Get Advice from Someone Else, And It's Different, They Have
MisInformed You or They Don't Know What They Are Talking About.

Later Friend, God Bless All!
Retired USMC and Other's
If You Need More On The Spot Advice, Call Me [770] 606-8871 anytime,
I'am Home This Weekend. [Jeff]

For Other's , My # Is Blocked, ect, When You Call I Will Know You,
So Make Sure Before You Call, Who Is It I'am Really Calling.

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Hope this helps,

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