john (76.4.32.165) - Tue Apr 14 20:48:25 2009

a/c blows hot air, compressor not turning on when switch is turned on. copressor isnt locked up. any ideas?

Reply #1 Johnny T (70.161.168.114) - Wed Apr 22 15:39:57 2009

-System need recharge

-accumulator switch needs adjustment or replacement

-A/C on anf off switch is bad

good luck.

• www.cardomain.com/id/aleman28

Reply #2 Robby (75.32.207.122) - Mon May 18 11:01:23 2009

Not sure what to research. It's been in the shop and recharged. Apparently, no leaks. The A/C blows cold..but then begins to blow hot after the truck warms up. It appears to be only in warmer weather...seems like the hotter the temperature outside the less the A/C will work.

What can I look for?

Thanks

Reply #3 Janet Cook (98.110.199.157) - Sun May 31 14:54:53 2009

I just had my exhaust system repaired and on the way home I noticed I have no AC. Coincidence or did they disconnect something, blows hot air no problem when I droped car off. My husband says it just decided to go!! Thanks

Reply #4 Jim Mc (72.160.117.112) - Thu Jun 4 11:02:12 2009

I have same problem described in Reply #2 by Robby. Any suggestions or ideas? Thanks.

Reply #5 Walt F (205.188.116.198) - Thu Jun 18 11:17:31 2009

I have the same problem as Reply #2( Robby) and Reply #4 (Jim Mc). Any suggestions?

Reply #6 Bobby Holder (209.169.78.8) - Thu Jun 18 19:04:45 2009

My 2002 F-250 ford truck started blowing hot air and i noticed the compressor would turn off at that time when i would floor board the gas the compressor would come back on and it will start blowing cold air again that last for about 5 minutes and it cuts off again.This seems to happen on hot days can you tell wants wrong. thanks Bobby

Reply #7 John S (71.189.143.99) - Tue Jun 23 21:34:31 2009

I have a 2002 F250. mine has started to blow hot air as well. Where is the accumulater switch located. System is fully charged. just had the cylinder swith changed. so i know it is charged.

Reply #8 blaine (24.173.158.90) - Wed Jun 24 16:46:16 2009

i have a 2003 f250 four door 4x4

and the ac is acting really wierd when you start the truck it takes a long time to cool down then it will say cool for about 15 min then start to heat up then it will switch from hot to cold ever 5 min or so only dose this durnig the day is fine at night when it isnt so hot out side . i have had the system recharged

any one got any ideas

Reply #9 sean c (204.26.73.142) - Thu Jul 2 00:44:19 2009

I have a 1976 F250 that blows hot air. The compressor works if I jump it to the cylenoid. I am not getting any juice from the original wire. Where does the wire trace back to so I can get juice to it. Thanks

Reply #10 Keith (74.251.0.245) - Sun Jul 12 12:42:57 2009

My 2005 Ford F 350's AC will not blow through the front vents anymore. Still cools, just comes out the windshield defroster, won't switch to the front vents.

Anybody have an answer?

Thanks

Keit

Reply #11 Jeff (68.225.160.234) - Mon Aug 3 18:35:28 2009

I have 2001 F150, experiencing same problem as original post and several replies above (#2, #4, #5, and #6). System is charged, blows cold air if engine is cool. But once it heats up it blows hot air - and we're not talking warm outside air, its super hot air as if the heat was on full blast. Occasionally I can floor it and the AC will kick back in, but usually only for a few minutes.

So with so many having this problem, surely someone has the answer???

Thanks - Jeff

Reply #12 dean (189.172.38.179) - Tue Aug 25 00:28:39 2009

sounds like a vacuum leak. if not could be AC clutch slipping

I will be trying to fix mine shortly.

best of luck.

ford-trucks.com/

• autoforum.classifieds1000.com/Ford-F250/a_c_blows_hot_air

Reply #13 dean (189.172.38.179) - Tue Aug 25 00:32:41 2009

wrong link here it is.

it has another link to some pictures

• ford trucks

Reply #14 Steve L (97.55.199.15) - Sun Sep 13 01:55:38 2009

Same exact problem with 2000 F350 7.3L Diesel...a/c blows cold then without warning blows hot air as if heater is running. If I redline the tack sometimes it will start blowing cold again. Sometimes it stays cold, sometimes after 30 seconds it gets hot again, sometime after 20 minutes it gets hot again.

I went to autozone, started the truck and turned on the AC and the guy told me my compressor wasnt engaging.

I'm certain this is not a vacuum issue, and it sounds pretty common since most of the posts above have the same symptoms...

Could it be the clutch needs replaced? Anyone find a solution for this problem?

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