fastcarny

Just wondering if anyone may have an answer My AC was always cold now i notice the temp takes a while to cool off warm air at first then it slowley gets colder. I did notice that the low pressure line going into the fire wall was warm however the smaller line next to the suction line going into firewall is ice cold! I connected a gauge to the low side and at 85 degs it shows about 25 to 30.. I attached a picture of the firewall lines.. Thanks......

User1

Suction line should be cold, high side line should be hot, the reverse of what you stated. Sounds like your system is low on refrigerant, which means you have a leak. You said you connected a gauge, are you familiar with HVAC?

Edit: Many places to start (pressures, TXV, repair history ,etc.), but you said gauge, so I'm starting there. For what do you have that gauge and what is your experience with it?

fastcarny

Yes i was down 1/2 pound now the air is ice cold low side is Cold High side is hot!! Thank you!

User1

You bet. Find that leak!

fastcarny

Yes the Low pressure suction side where you would charge the system the little needle valve was loose now that is tight and we have a cap screwed on..

User1

Loose schrader valve. It happens. All set for summer!

fastcarny

Yes sir Thank you!!

fastcarny

I do have one other question--I did note when i first turn on my AC it actually blows warm air then i turn it off wait about 2 mins turn it back on and Bingo the air is up and running ice cold.. Any ideas? When i first turn the unit on the compressor kicks in no issues! Strange?

User1

Lazy TXV. Easy to replace, but will have to open the system.

fastcarny

Thank you!