[AT] OT: sleeper air

[Ron Cook]

Cecil,
     Thanks for the tip.  It acts just like a valve is not opening. I 
did not get a chance to look at the unit yet, but I did look in the 
manual.  I think I have a Behr unit and they do not use a solenoid valve 
according to the manual, just the expansion valve. But that does not 
always tell the truth about how things really are.  I do know there is 
no valve where they tee off, but the Red Dot units do have a freon 
solenoid just inside the unit under the cover.  I'll take a look at it 
maybe tomorrow.

Ron Cook
Salix, IA

On 7/7/2012 1:00 PM, Cecil R Bearden wrote:
> Ron:
> Does it have a solenoid valve that opens to allow freon to the sleeper
> evaporator?  If so, it might just be a bad connection or wiring
> problem.   I have not had that much problems with expansion valves...
> However, I may be having one on my big van...
> If there is no temp change on your lines, then there is probably no
> freon circulating.  I would look for a valve on the lines going to the
> back or where they tee off the main line.
>
> Cecil in OKla
>
> On 7/7/2012 10:52 AM, Ron Cook wrote:
>> Yesterday it was hot enough that I decided to run the sleeper air in my
>> Freightliner to augment the cab air.  I have not run that sleeper air
>> for a few years, I suppose.  3, maybe 4.
>>
>> No cooling happening there!  Apparently no refrigerant passing through
>> the evaporator at all.  No hot nor cold line to the touch. Do you
>> suppose that expansion valve is stuck or plumb plugged up with foreign
>> matter?  That has to be where the problem lies.  Some disassembly
>> required, I think.
>>
>> Front air works good, I just wanted to turn it into a meat locker, I
>> guess.:-)
>>
>> Ron Cook
>> Salix, IA
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