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Old 08-27-2014, 03:09 AM   #1
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A/C Blows Hot Air, (but fully charged)Please Help

Hey Guys,

My 06 Jeep Wrangler's A/C is fully charged ( it's been checked ) and the blower is working fine on all settings, but it's blowing hot air.: Any suggestions will be appreciated...thanks in advance.

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Old 08-27-2014, 02:09 PM   #2
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Pull the temp control knob off & make sure the shaft is turning when you go from hot to cold, the knob center may be cracked. If good the blend door actuator may be stuck in the hot position. If you remove it you should be able to turn the door manually to see if you get cold air. If the actuator is not moving, here is a link on repairing it.



blend door actuator repair

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Old 08-27-2014, 04:58 PM   #3
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Take a look at the AC compressor while the engine is running and confirm that the clutch is engaged when it should be. The outer puller will rotate always rotate but inner should be spinning also.
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Old 08-27-2014, 06:09 PM   #4
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Use a an digital electrical test meter (you should own one anyway) Check easy stuff first-fuses. If Ok, then with key on a/c on, see if you have 11.5v or more at the wire terminal going to the compressor (unplug and check). If not check the PSI cycling switch at the accumulator. the switch is about 2 inches long, round about 1-1/4" diameter at the base and about the size of a dime where the electrical 2-wire terminal. Check for voltage there (unplug) -one of the two wire terminals in the plug should be 11.5v min.If you have voltage there get a paperclip and jump the wire terminals-clutch engage? if so cycling switch is probably bad. If NO power there-start looking backwards at inside a/c switch, relay at big fuse box under hood. Be careful. It would be good to buy a repair manual specific to your jeep ($25.00 or less online). Easy to follow the voltage flow from start to end (compressor).
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Old 08-29-2014, 04:24 AM   #5
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Thanks guys for all the suggestions. I'll work on it over the weekend.
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Old 08-29-2014, 08:18 AM   #6
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I know as a jeep the AC is not its beat feature! Mine blows cold but its no artic blast..
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Old 08-29-2014, 09:10 AM   #7
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Quote:
Originally Posted by RUBI 4 MY MRS View Post
Pull the temp control knob off & make sure the shaft is turning when you go from hot to cold, the knob center may be cracked. If good the blend door actuator may be stuck in the hot position. If you remove it you should be able to turn the door manually to see if you get cold air. If the actuator is not moving, here is a link on repairing it.



blend door actuator repair
x2 on the blend door, which controls air temp. They are known to break at the swivel arm. If your temp control is a slide lever, follow the cable attached to the lever to its end point, which is where the blend attachment is. See if you can manually turn it by hand and check changes in air temp. There should be some resistance when turning. Newer TJ's with knob controls, the blend door uses a actuator motor that can also go bad. Remove it and check it's function and also the blend door using the stated manual technique.
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Old 08-30-2014, 09:04 PM   #8
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Vacuum line leak?

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