Carrier 38CKC042 Air Conditioner Logo
Posted on Jul 23, 2011
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My gauges are showing 60 low side 475 high The air is some what cold. comperser is running

  • J Lorensen Jul 23, 2011

    it seems bit hih on the high side but not much what isthe tempt at eh discharge on the air inside th house

  • Robert Jul 23, 2011

    Is this r-22 or 410a?

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2 Answers

Felizardo Erilla

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  • Posted on Dec 06, 2011
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You need to evacuate the refrigerant and vacuum the system. Charge the correct amount of gas using weighing scale.

J Lorensen

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  • Posted on Jul 23, 2011
J Lorensen
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I thought I answered this You discharge pressure seems a bit high but if its hot inside th house it w might be right. but your suction pressure seems a bit low for that high a discharge pressure . let it run for a while and check it again. be certain that you purge a bit of gas when you hook your hose up just a little mind you

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https://www.youtube.com/watch?v=ucOTZAg27lo
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The compressor is working but it is not blowing cold air. air turn off once in a while. need to turn off motor and restart truck so the air conditioner can restart

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Check engine light and air conditioning

I Think I Can,
You Might Be Blending Hot Air With A/C Cold Air And Being 100Deg Outside, Your Getting
Really Warm/Hot Air Inside,
Your System Is Charged w/Freon, The A/C Compressor Is On/Engaged,
There Are 2-Aluminum Tubes Comming From The Compressor, [In & Out Pressure]
1 Tube Will Goto The Front Condensor, Infront Of The Raidator,
The OTHER Tube Comming Out Of The Condensor Will Goto A Dryer,
[Aluminum Looking Cylinder] Bigger Aluminum Tube[s]
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OK, The Dryer Tube's, 1 Of Them Should Be Cool/Cold, Locate That Tube, A Thermometer
wrapped w/Alum-Foil Around This Tube,
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You Have Cold Air, You Have Warm/Hot Air Inside Car/Vents?
You Are Blending Hot Air w/Cold A/C Air, Problem Is With Heater-A/C Blend Box
Under Dash. There Are 2 Seperate Coils Under The Dash,
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On The Dash.
If You Can Select From Defrost Vent To Dash and Floor Vents, Most Likely you Have
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If you Get Cold Air, Take a Ty-Wrap, Around The Shaft, Secure It, To Keep The
Vent In The Cold Air Position.
Then You Will Have To Get A New Diaphram Installed, Most Time's, Can Be Done
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Now About The Restriction In A System,
You Will Need A Set Of A/C Gauges, Car-Off, A/C Off, Connect Gauges.
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OK, Gauges Show Pressure, Gauges Not Connected To Anything,
Open Up Both Knob's, Blue [Low-Side], Red [High-Side]
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Covers, Need Little Screwdriver, If Gauges Off By ie: 4 psig,
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Close Both Valves, Blue & Red
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need freon.
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a Plugged "Orfice Tube" [Filter] Part Cost $3.00, Servicing The Filter, Alot More.
Restriction Causing Might Be , Moisture/Air in System [Improper Vaccum On System During Last Repairs], Compressor Breaking Down [Metal, Black Goo Bul-up]

Hope You Get Some Cold Air Soon.
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Need clarification...
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Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.
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Air conditioner

there is a little filter screen in the high side line. sounds like it clogged low side 70 is ok high should be around 150
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