The Nest says the system is cooling but the AC is not running. It’s maybe 3-4 years old. Only this evening, maybe 3-4

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Customer: The Nest says the system is cooling but the AC is not running
Contractor's Assistant: Do you know the model of your Nest thermostat? How old is it?
Customer: It’s maybe 3-4 years old
Contractor's Assistant: How long has this been going on with your Nest thermostat? What have you tried so far?
Customer: only this evening, maybe 3-4 hrs with this issue I have taken the unit off the wall and restarted it put it back on the wallc the AC unit outside the condo is running (fan at least)
Contractor's Assistant: Is there anything else the HVAC Tech should know before I connect you? Rest assured that they'll be able to help you.
Customer: nope that’s it
Answered by André R. in 5 mins 1 year ago
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30,092 satisfied customers

Specialities include: HVAC
Customer
Hi Andre

OK is there any air coming out the vents?

Customer
No
I checked the AC unit downstairs, it’s running. And the unit outside is running the fan

OK so both inside and outside units are on, but no air coming out the vents?!

Customer
Yeah

Go see your air filter

Customer
Just changed it

Remove it. Put your hand and tell me if you feel any airflow

Customer
a bit
It’s not very strong
Go see the unit outside.

Look in the back, at the pipes.

Is there ice / frost?

Customer
No

Are you certain?


But the blades are spinning?


Touch the pipe in the back, underneath the black insulation.

Feel it, is it cold?

Customer
Of the outside unit?
Customer
No
It is not cold
Customer attachment 7/25/2023 2:10:58 AM

Show me where you are touching

Customer
There is frost on that bottom pipe
Customer attachment 7/25/2023 2:11:53 AM
that’s what I asked you, but you said there was none
Customer
I didn't realize that's the one you were asking about
What is the recommended next step?

That’s fine.

Just the power off immediately to avoid more damage.

If the lines are frozen, the coil is frozen as well.

Everything off for a few hours, to let the ice melt.

When you changed the filter, was it really dirty?

Customer
How do I power it off?

At the thermostat is fine

Customer
it was dirty
Turned the unit off inside
Once we leave the unit off for a few hours, do we need anyone out here to check on the unit

Okay, usually when the ice builds up, it’s because:

Unit is dirty

There is an issue with the refrigerant

Thankfully, it seems it was just dirty, causing restrictions.

Power off a few hours, then you will run the AC again. It should be fine.

Customer
Thanks

My pleasure. You've done extremely well, and extremely well to reach out here on JustAnswer. Congrats.

On my end, it is heartwarming to help! Keep me posted, I will be here at your disposal should you need me. Add me to your favourites so you can reach me faster, if you ever have questions for AC / Heating equipment! Have a wonderful day, and God bless you!

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Pearl Chatbot, Contractor's Assistant
5 Home improvement experts are online right now.

The air is no longer cool. I can't hear the water going to the AC unit, which is outside the house. I've shut it off and

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Customer: The air is no longer cool. I can't hear the water going to the AC unit, which is outside the house. I've shut it off and left the AC off for about 3 hours. When I turned it back on, the air was still not cool.
Answered by Mr. Appliance in 3 mins 12 years ago
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Training in Refrigeration, HVAC and Home Appliances for over 30 years
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8,645 satisfied customers

Specialities include: Appliance, Electrical, Home Improvement, HVAC, Small Appliance, Small Engine
start the ac and go outside to the unit and feel the two copper lines coming from it to the house and tell me if the small line is hot and if the larger of the two feels cool and if its sweating?
Customer
The small one is cool, and the large one feels warm
is the fan outside blowing?
Customer
yes
the ac is low of freon and you will need to get a cfc tech to come out and recharge the system ,, thanks
Customer
Thanks, XXXXX XXXXX that.
Glad i could help you with your problem so please leave me a positive rating of one of the top 3 smiley faces for me before you leave for my time and knowledge ,, thanks
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