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Old 06-28-2008, 06:42 PM
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Join Date: May 2008
Posts: 2
Default a/c problems on a Kenworth

our Kenworth a/c simply will not work with out the main fan on, just blow hot air or mildly cool. any suggestions
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Old 06-28-2008, 07:03 PM
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Join Date: Jul 2004
Location: Macedon Center,NY
Posts: 1,026

What kind of condition is the condenser in ? Is it clean ? or is it full of corrosion, dirt and bugs ? 8) 8)
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Old 06-29-2008, 05:09 PM
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Join Date: Feb 2005
Location: Tennessee
Posts: 17,082

You may need to have it charged. It could be low on refrigerant. Being low on antifreeze can also make your a/c blow warmer.
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Old 06-29-2008, 05:34 PM
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Join Date: Jan 2007
Posts: 4,799

All of what TK & G-da-Man said! Plus...are the heater line valves closed? Makes a difference over 90 degrees.

Big thing is the condition of the condenser and radiator. If they are plugged with dirt, leaves and bugs..then you won't get proper air flow throw them and no A/C, with out the truck moving and the fan engaged...been there...paid for that!! The condensor needs to be pulled off the front, washed and blowen out from the cannot wash or blow the dirt through towards the radiator !! Also..kinked hoses from the condenser to the drier....dirty cab filters..or a bad cab "coil" or bad compressor.

Lot's of things to go wrong with A/C.
Space...............Is disease and danger, wrapped in darkness and silence! :thumbsup: Star Trek2009
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