Hvac Blower Not Working
Thread Starter
Racer
Joined: Sep 2006
Posts: 412
Likes: 0
From: FLORISSANT MO.
Hvac Blower Not Working
HEY VET FRIENDS MY FRIEND HAVE A 99 VERT,HIS HEAT OR A/C DON'T COME ON WE CHECK THE BLOWER MOTOR FUSE AND STILL NOTHING. WHAT MIGHT BE THE NEXT STEP.PLEASE HELP US GUYS.THANKS 
Melting Slicks
Joined: Jan 2007
Posts: 3,021
Likes: 133
From: Conejo Valley CA
I had my blower stop working about 6 months ago. I fixed it on my own. In my case, the fix was not costly... here are the details:
1) The blower did not come on for A/C
2) The blower did not come on for heat
3) All HVAC head unit appeared to work (that is the LED symbols were changing appropriately with button pushes made on the console)... just no blown air
Here's how I troubleshooted:
1. Checked all applicable fuses - everything checked out.
2. Removed the HVAC blower and bench tested. The unit tested on the bench so I knew the blower motor was good.
3. I then ran long wires with alligator clips to connect the power connector to the blower. Blower did not work.
4. I cleaned by scraping and using electronic component cleaner on the power connector and the terminals of blower itself.
5. Reconnected and re-tested and ALL WORKED.
It is well known that electrical connectors in our beloved cars go bad. I have already had to clean three others due to similar "power outages". This may or may not be your problem. At any rate, I recommend you check this first before looking at more difficult problem areas.
1) The blower did not come on for A/C
2) The blower did not come on for heat
3) All HVAC head unit appeared to work (that is the LED symbols were changing appropriately with button pushes made on the console)... just no blown air
Here's how I troubleshooted:
1. Checked all applicable fuses - everything checked out.
2. Removed the HVAC blower and bench tested. The unit tested on the bench so I knew the blower motor was good.
3. I then ran long wires with alligator clips to connect the power connector to the blower. Blower did not work.
4. I cleaned by scraping and using electronic component cleaner on the power connector and the terminals of blower itself.
5. Reconnected and re-tested and ALL WORKED.
It is well known that electrical connectors in our beloved cars go bad. I have already had to clean three others due to similar "power outages". This may or may not be your problem. At any rate, I recommend you check this first before looking at more difficult problem areas.
Thread Starter
Racer
Joined: Sep 2006
Posts: 412
Likes: 0
From: FLORISSANT MO.
ANY PIC BY WHERE IT IS LOCATED ANY DYS POST ON BLOWER MOTOR
I had my blower stop working about 6 months ago. I fixed it on my own. In my case, the fix was not costly... here are the details:
1) The blower did not come on for A/C
2) The blower did not come on for heat
3) All HVAC head unit appeared to work (that is the LED symbols were changing appropriately with button pushes made on the console)... just no blown air
Here's how I troubleshooted:
1. Checked all applicable fuses - everything checked out.
2. Removed the HVAC blower and bench tested. The unit tested on the bench so I knew the blower motor was good.
3. I then ran long wires with alligator clips to connect the power connector to the blower. Blower did not work.
4. I cleaned by scraping and using electronic component cleaner on the power connector and the terminals of blower itself.
5. Reconnected and re-tested and ALL WORKED.
It is well known that electrical connectors in our beloved cars go bad. I have already had to clean three others due to similar "power outages". This may or may not be your problem. At any rate, I recommend you check this first before looking at more difficult problem areas.
1) The blower did not come on for A/C
2) The blower did not come on for heat
3) All HVAC head unit appeared to work (that is the LED symbols were changing appropriately with button pushes made on the console)... just no blown air
Here's how I troubleshooted:
1. Checked all applicable fuses - everything checked out.
2. Removed the HVAC blower and bench tested. The unit tested on the bench so I knew the blower motor was good.
3. I then ran long wires with alligator clips to connect the power connector to the blower. Blower did not work.
4. I cleaned by scraping and using electronic component cleaner on the power connector and the terminals of blower itself.
5. Reconnected and re-tested and ALL WORKED.
It is well known that electrical connectors in our beloved cars go bad. I have already had to clean three others due to similar "power outages". This may or may not be your problem. At any rate, I recommend you check this first before looking at more difficult problem areas.
Melting Slicks
Joined: Jan 2007
Posts: 3,021
Likes: 133
From: Conejo Valley CA
Some more detail for you...
The blower is located on the passenger side under the dash. It's been a while since I have done this, I hope my memory serves me well, but here it goes...you access it as follows...
1. You will need to put the passenger seat all the way back.
2. Lay on your back in the passenger feet area and look straight up. There is a rubber material that covers the bottom portion of the dash.
3. You should see "snaps" that hold this rubber piece in place. You simply pull them off.
4. With the rubber piece removed, you should see the blower. There are 3 bolts that hold it in place.
5. After removing the three bolts, the blower will come out. Just hold the blower on that last screw removal so the blower doesn't come down on you.
6. When you remove the blower, you will see a while that goes to a connector. You will have to disconnect so that you can bench test.
The easiest way to bench test is to test it directly with a car battery. At least that's how I did it. Otherwise, you'll need a 12VDC power supply.
1. You will need to put the passenger seat all the way back.
2. Lay on your back in the passenger feet area and look straight up. There is a rubber material that covers the bottom portion of the dash.
3. You should see "snaps" that hold this rubber piece in place. You simply pull them off.
4. With the rubber piece removed, you should see the blower. There are 3 bolts that hold it in place.
5. After removing the three bolts, the blower will come out. Just hold the blower on that last screw removal so the blower doesn't come down on you.
6. When you remove the blower, you will see a while that goes to a connector. You will have to disconnect so that you can bench test.
The easiest way to bench test is to test it directly with a car battery. At least that's how I did it. Otherwise, you'll need a 12VDC power supply.
