Fan works when air is on, but not by itself?

Tiny
FLORIDA11
  • MEMBER
  • 2003 CHEVROLET S-10
  • 40,000 MILES
Air will freeze up after 1 hour of use
Saturday, March 24th, 2012 AT 10:55 PM

10 Replies

Tiny
FIXITMR
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  • 9,990 POSTS
What do you mean freeze up? What fan are you referring to?
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Saturday, March 24th, 2012 AT 11:00 PM
Tiny
FLORIDA11
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  • 4 POSTS
Fan that blows air inside the cab
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Saturday, March 24th, 2012 AT 11:10 PM
Tiny
FIXITMR
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When you say AIR do you mean air conditioning/AC?
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Sunday, March 25th, 2012 AT 12:19 AM
Tiny
FLORIDA11
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Yes I do
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Sunday, March 25th, 2012 AT 3:04 AM
Tiny
FIXITMR
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What does air will freeze up mean?
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Sunday, March 25th, 2012 AT 3:50 AM
Tiny
FLORIDA11
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Barely blows any thing, one of the pipes under the hood freezws up?
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Sunday, March 25th, 2012 AT 7:58 PM
Tiny
FIXITMR
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You probably have a bad low pressure cutoff switch-in the engine compartment on system line. Your compressor is not cycling off to keep pressure from dropping to low and attracting to much moisture.
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Monday, March 26th, 2012 AT 6:15 PM
Tiny
FIXITMR
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Also if yours has the variable displacement compressor that can go bad by not changing/varying it's output to match conditions. Default being max output.
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Monday, March 26th, 2012 AT 6:20 PM
Tiny
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Was anything done to system prior to this happening? The whole system should be checked over. And are you saying with air off and sufficient time for ice to melt inside and out that the fan does not work at all or does not blow any air out though you can hear it run?
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Monday, March 26th, 2012 AT 7:04 PM
Tiny
WRENCHTECH
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  • 20,757 POSTS
If the blower is not working, then it would be normal to see icing on the pipes. The blower has to be working.
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Monday, March 26th, 2012 AT 7:17 PM

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