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AC air flow issue

rkwhite61

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rkwhite61 New Member

rkwhite61

Posted
Posted

I have a 2008 suburban that needed a new HVAC climate control panel, due to the old one locking up. After the panel swap, I'm having a few issues. Any help would be greatly appreciated.

Issue 1: AC/Heat works for a while, then the air flow slowly starts to decrease and eventually stops flowing out of the vents. I can turn the fan on high and you can it hear it really blowing, but it is not coming out of the vents or flow. Have no idea where it's going (maybe out of the cowl).

Issue 2: When I set the flow to come out of the top vents, on the front panel with the rear ac engaged, the air flow comes out of the floor in the rear. When I switch the flow direct to the floor on the front panel, the air flow in the rear then comes out of the roof vent. Then, if I use the rear panel to adjust the air flow, it is also reversed - roof setting has the air flow on the floor and floor setting has the air flow on the roof.

Any ideas?

  • 2 weeks later...
dc1515 Enthusiast

dc1515

Posted
Posted

Try disconnecting the battery cables from the battery and keep them off for a few minutes. This could potentially reset the module and possibly clear up your issues.

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