Help, AC fan not working
Thread Starter
Former Vendor
Joined: Mar 2003
Posts: 18,666
Likes: 395
From: Tampa FL
St. Jude Donor '07-'08-'09-'10-'11-'12'-'13-'14-'15
Help, AC fan not working
My fan on the climate control is not working at all either with AC on or off. I thought it might be the AC belt but that should not cause the fan not to work should it? Thanks in advance for the help.
Cajun
Cajun
Melting Slicks
Joined: Jan 2007
Posts: 3,021
Likes: 133
From: Conejo Valley CA
As much as we love our C5's, they are notorious for having bad electrical connectors. I have had to clean several. Last April, my HVAC blower went out (or fan on climate control). I removed the blower and cleaned the connector. Sure enough, once I put the fan back on, it was working like a charm.
I would like to provide the following procedure for you:
0. First check the fuse as thisMSGgood4me recommends to rule this out. Assuming you don't have a bad fuse, go ahead with the following...
1. Do the following errands:
A. Go to Pep Boys and purchase Electronic Component Cleaner and Dielectric Grease.
B. Go to Rat Shack (Radio Shack) and obtain some wire with alligator clips on both ends. Ensure the wire you get can handle 10 Amps or so.
2. On the passenger side, you will have to push the passenger seat all the way back and get under the dash to remove HVAC blower.
3. Bench test the blower to ensure it is working. The easiest way to accomplish this would be to take the wires with alligator clips purchased from Rat Shack and attach the fan directly to your car battery. If fan is working, continue...
4. Spray electronic component cleaner generously on male and female connector for blower. If you have a small brush, it is helpful brush the male connector to remove corrosion. If not, just use the alligator clip from the wires to "scratch" off the corrosion... at least this worked for me.
5. Connect fan back up. If it works, you have successfully cleaned the connector. Now, the not fun part but necessary part... remove the fan and separate electrical connector again and apply the dielectric grease to male and female connector. This will prevent future corrosion in the future. Choose not to do this step and you can find yourself possibly doing this repair again. Just do this so that the job is done right.
If your fan is still not working after all this, you could have a problem with one of the control modules associated with the HVAC system... yeech! I regret I can not advise how to trouble shoot that but with all the experts on this board, hopefully someone will chime in. But like I said, I had this problem last April and it was only the connector. Do give us an update if this fixes your problems.
I hope this solves your problem. -Matt
I would like to provide the following procedure for you:
0. First check the fuse as thisMSGgood4me recommends to rule this out. Assuming you don't have a bad fuse, go ahead with the following...
1. Do the following errands:
A. Go to Pep Boys and purchase Electronic Component Cleaner and Dielectric Grease.
B. Go to Rat Shack (Radio Shack) and obtain some wire with alligator clips on both ends. Ensure the wire you get can handle 10 Amps or so.
2. On the passenger side, you will have to push the passenger seat all the way back and get under the dash to remove HVAC blower.
3. Bench test the blower to ensure it is working. The easiest way to accomplish this would be to take the wires with alligator clips purchased from Rat Shack and attach the fan directly to your car battery. If fan is working, continue...
4. Spray electronic component cleaner generously on male and female connector for blower. If you have a small brush, it is helpful brush the male connector to remove corrosion. If not, just use the alligator clip from the wires to "scratch" off the corrosion... at least this worked for me.
5. Connect fan back up. If it works, you have successfully cleaned the connector. Now, the not fun part but necessary part... remove the fan and separate electrical connector again and apply the dielectric grease to male and female connector. This will prevent future corrosion in the future. Choose not to do this step and you can find yourself possibly doing this repair again. Just do this so that the job is done right.
If your fan is still not working after all this, you could have a problem with one of the control modules associated with the HVAC system... yeech! I regret I can not advise how to trouble shoot that but with all the experts on this board, hopefully someone will chime in. But like I said, I had this problem last April and it was only the connector. Do give us an update if this fixes your problems.
I hope this solves your problem. -Matt
Thread Starter
Former Vendor
Joined: Mar 2003
Posts: 18,666
Likes: 395
From: Tampa FL
St. Jude Donor '07-'08-'09-'10-'11-'12'-'13-'14-'15
As much as we love our C5's, they are notorious for having bad electrical connectors. I have had to clean several. Last April, my HVAC blower went out (or fan on climate control). I removed the blower and cleaned the connector. Sure enough, once I put the fan back on, it was working like a charm.
I would like to provide the following procedure for you:
0. First check the fuse as thisMSGgood4me recommends to rule this out. Assuming you don't have a bad fuse, go ahead with the following...
1. Do the following errands:
A. Go to Pep Boys and purchase Electronic Component Cleaner and Dielectric Grease.
B. Go to Rat Shack (Radio Shack) and obtain some wire with alligator clips on both ends. Ensure the wire you get can handle 10 Amps or so.
2. On the passenger side, you will have to push the passenger seat all the way back and get under the dash to remove HVAC blower.
3. Bench test the blower to ensure it is working. The easiest way to accomplish this would be to take the wires with alligator clips purchased from Rat Shack and attach the fan directly to your car battery. If fan is working, continue...
4. Spray electronic component cleaner generously on male and female connector for blower. If you have a small brush, it is helpful brush the male connector to remove corrosion. If not, just use the alligator clip from the wires to "scratch" off the corrosion... at least this worked for me.
5. Connect fan back up. If it works, you have successfully cleaned the connector. Now, the not fun part but necessary part... remove the fan and separate electrical connector again and apply the dielectric grease to male and female connector. This will prevent future corrosion in the future. Choose not to do this step and you can find yourself possibly doing this repair again. Just do this so that the job is done right.
If your fan is still not working after all this, you could have a problem with one of the control modules associated with the HVAC system... yeech! I regret I can not advise how to trouble shoot that but with all the experts on this board, hopefully someone will chime in. But like I said, I had this problem last April and it was only the connector. Do give us an update if this fixes your problems.
I hope this solves your problem. -Matt
I would like to provide the following procedure for you:
0. First check the fuse as thisMSGgood4me recommends to rule this out. Assuming you don't have a bad fuse, go ahead with the following...
1. Do the following errands:
A. Go to Pep Boys and purchase Electronic Component Cleaner and Dielectric Grease.
B. Go to Rat Shack (Radio Shack) and obtain some wire with alligator clips on both ends. Ensure the wire you get can handle 10 Amps or so.
2. On the passenger side, you will have to push the passenger seat all the way back and get under the dash to remove HVAC blower.
3. Bench test the blower to ensure it is working. The easiest way to accomplish this would be to take the wires with alligator clips purchased from Rat Shack and attach the fan directly to your car battery. If fan is working, continue...
4. Spray electronic component cleaner generously on male and female connector for blower. If you have a small brush, it is helpful brush the male connector to remove corrosion. If not, just use the alligator clip from the wires to "scratch" off the corrosion... at least this worked for me.
5. Connect fan back up. If it works, you have successfully cleaned the connector. Now, the not fun part but necessary part... remove the fan and separate electrical connector again and apply the dielectric grease to male and female connector. This will prevent future corrosion in the future. Choose not to do this step and you can find yourself possibly doing this repair again. Just do this so that the job is done right.
If your fan is still not working after all this, you could have a problem with one of the control modules associated with the HVAC system... yeech! I regret I can not advise how to trouble shoot that but with all the experts on this board, hopefully someone will chime in. But like I said, I had this problem last April and it was only the connector. Do give us an update if this fixes your problems.
I hope this solves your problem. -Matt
Cajun
Thread Starter
Former Vendor
Joined: Mar 2003
Posts: 18,666
Likes: 395
From: Tampa FL
St. Jude Donor '07-'08-'09-'10-'11-'12'-'13-'14-'15
Drifting
Joined: Feb 2005
Posts: 1,643
Likes: 167
