Fan worked until I removed console and replaced

Asked by Guru1R416 Sep 22, 2019 at 01:21 PM about the 2003 Ford Taurus

Question type: Maintenance & Repair

I had to remove the radio/heater control console to pull panels off to get to
the gauge lights and replaced burned out bulbs. After putting it all back
together the heater fan does nothing on any setting.

I can hear the vacuum lines switching positions of the duct flow, the radio
works, but nothing on the fan. I'm not sure about the temp control.

I made sure to unplug the negative battery terminal each time I removed or
replaced something to ensure I didn't have an arc or short.

I've checked all the fuses relating to the blower and they are fine.

At a loss of what it could be unless the switch went out or the blower fan
died during this process.

4 Answers

Is it possible that the battery has drained enough to not run the fan? I had the battery unplugged during most of the repair, but on intermittently to check that the bulbs I replaced in the gauge panel were working. Something else I read in searching this out made me think of this. I guess I may try to run the car a little to charge the battery and see what happens. I'm not optimistic about this idea. I don't see how everything else would work fine (lights don't seem to be dimmed or anything) and only the fan not turn on or even try to turn on. But at this point I've got to try every option. Luckily, I have another taurus I can take parts off of, so I'm assuming my next step is to replace the fan itself. I was going to try the controls from the parts car but it's a 2000 model and the control plugs are different for the switch. Although I think I could swap the connectors or just the dial itself.

316,095

This is a variation on the eternal question of "I worked on my car and F'd it up" "what do I do?". Since you know what you worked on, you must go back and find your mistake.

I have retraced as far as removing the console and ensuring I didn't leave anything unplugged. Wires didn't seem loose in the clips. Beyond that, the work I had done was simply removing the panels around the gauge panel, removed the gauge panel and replaced bulbs. Then put everything back in reverse. Nothing else should have related to the the heater controls except removing and reinstalling the console. I would appreciate any suggestions on what might be the cause instead of being criticized for taking the initiative to work on my own car, rather than hand it off to someone else. Some say, "No one today knows how to fix the simplest thing....", then when someone takes initiative to do something for themselves they are criticized for not taking it to a "professional".

And the answer is.... reset the computer. I saw this in another search, but it was for a 2013 Taurus and wasn't sure it would work for a 2003 model. I waited to try it in case this would cause other issues, but so far it is working. Unplugged the positive battery terminal, turned the key on as if to start, 3 times. Had to run the car a couple minutes, but the fan came on. I've lost track to where I saw the other post, but I'm thankful someone out there was kind enough to share their experience or I would still be replacing parts with no results. Hope this helps someone else.

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