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I have a XL 16si Unit that all of a sudden quit so a friend

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of mine checked the capacitor...
I have a XL 16si Unit that all of a sudden quit so a friend of mine checked the capacitor with a multimeter and said it was bad. I replaced it and that did not fix it.
Submitted: 1 year ago.Category: HVAC
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Answered in 5 minutes by:
9/14/2016
HVAC Technician: WCohn, Construction Worker replied 1 year ago
WCohn
WCohn, Construction Worker
Category: HVAC
Satisfied Customers: 1,355
Experience: Been in contruction 18+years
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Hello, my name is ***** ***** I look forward to helping you!

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HVAC Technician: WCohn, Construction Worker replied 1 year ago

What is it NOT doing?

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Customer reply replied 1 year ago
The inside fan does not run as well as the outside.
HVAC Technician: WCohn, Construction Worker replied 1 year ago

Okay, I assume the filters are clean?

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Customer reply replied 1 year ago
sir
HVAC Technician: WCohn, Construction Worker replied 1 year ago

Lets be clear. The outside fan is not what blows air through your ducts. That being said are you feeling less air through the vents than usual?

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Customer reply replied 1 year ago
After I replaced the capacitor, is there some kind of reset
Customer reply replied 1 year ago
Nothing at all
HVAC Technician: WCohn, Construction Worker replied 1 year ago

No, the capacitor just helps the fan to get going. So you are getting ZERO airflow through the vents?

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Customer reply replied 1 year ago
no air flow
HVAC Technician: WCohn, Construction Worker replied 1 year ago

Where did you replace the capacitor? Indoor unit or outdoor?

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Customer reply replied 1 year ago
Outside
HVAC Technician: WCohn, Construction Worker replied 1 year ago

Well that only helps the outdoor fan, which isn't the issue. Is your indoor unit in the garage.

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Customer reply replied 1 year ago
Basement
HVAC Technician: WCohn, Construction Worker replied 1 year ago

Okay is it also your furnace?

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HVAC Technician: WCohn, Construction Worker replied 1 year ago

Does your thermostat call for a/c by saying "cool" on display?

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Customer reply replied 1 year ago
but not at the moment it is powered off
HVAC Technician: WCohn, Construction Worker replied 1 year ago

Okay make it call for "cool" then go into the basement and see iff fan is blowing at all.

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Customer reply replied 1 year ago
The air handler does not come on at all
HVAC Technician: WCohn, Construction Worker replied 1 year ago

Okay is your furnace electric?

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Customer reply replied 1 year ago
it is
HVAC Technician: WCohn, Construction Worker replied 1 year ago

Sorry for the delay, you should have two breakers for the furnace one at the furnace and one at the breaker panel. Check them both.

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Customer reply replied 1 year ago
The one at the furnace is the type that u pull out. Yes they are both good
HVAC Technician: WCohn, Construction Worker replied 1 year ago

Can you spin the squirrel cage style fan in the air handler? Spin it hard!

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Customer reply replied 1 year ago
It will be a minute I need to take the cover off
HVAC Technician: WCohn, Construction Worker replied 1 year ago

Do you have a multimeter?

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Customer reply replied 1 year ago
I tried it several times it is making a humming sound
Customer reply replied 1 year ago
I have a multimeter
HVAC Technician: WCohn, Construction Worker replied 1 year ago

Okay then I think you have a bad start capacitor on that fan motor. The humming is because its not getting enough of a boost. It could be a bad fan motor, but I'd start with the capacitor. They are much cheaper.

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HVAC Technician: WCohn, Construction Worker replied 1 year ago

Did the fan spin at all?

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Customer reply replied 1 year ago
it spins
HVAC Technician: WCohn, Construction Worker replied 1 year ago

Put the cover back on and see if it'll work now.

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Customer reply replied 1 year ago
Nothing. It is still humming
HVAC Technician: WCohn, Construction Worker replied 1 year ago

Well, its got power. If it isn't moving its the motor or the start capacitor.

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Customer reply replied 1 year ago
OK I will start with the capacitor
HVAC Technician: WCohn, Construction Worker replied 1 year ago

If the windings in the motor were bad it would trip the breaker, so I'd lean towards the capacitor.

Any other questions?

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Customer reply replied 1 year ago
No I thank you
HVAC Technician: WCohn, Construction Worker replied 1 year ago

Are you satisfied with my service? Or shall I keep this question open?

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Customer reply replied 1 year ago
If u can keep it open would be great. Is this capacitor hard to find
HVAC Technician: WCohn, Construction Worker replied 1 year ago

Take it to the local hvac supply like a Johnstone supply. They should have one. Let me know when you are willing to rate me and I'll activate it. It is the only way I get credit for my time.

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HVAC Technician: WCohn, Construction Worker replied 1 year ago

I can still leave it open even after the rating

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Customer reply replied 1 year ago
I'm talking about in the furnace
HVAC Technician: WCohn, Construction Worker replied 1 year ago

Follow the wires from the fan motor to the capacitor. Some motors have them on the motor themselves. I'll load a picture of each

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Customer reply replied 1 year ago
Thanks
HVAC Technician: WCohn, Construction Worker replied 1 year ago

I've got to head to bed. Good Luck!

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HVAC Technician: WCohn, Construction Worker replied 1 year ago

how'd it work out for you?

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