SHOguy 92
New Member
The fans for myheat keep blowing the fuse. I was thinking it would be a faulty ground so how would I go about finding the groun for it? If you have other ideas of what it could be tell me, thanks.
#9 fuse, fan fuse
- Thread starter SHOguy 92
- Start date
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projectSHO89
SHOless In St L
Does the fuse blow immediately or is it an intermittent condition?
If it is immediate, you have a dead short to ground on the load side of the circuit.
If it is intermittent, it may be a chafed or pinched wire that is intermitently shorting to ground or it may be a blower motor that is intermittently pulling too much current causing the fuse to blow.
Steve
If it is immediate, you have a dead short to ground on the load side of the circuit.
If it is intermittent, it may be a chafed or pinched wire that is intermitently shorting to ground or it may be a blower motor that is intermittently pulling too much current causing the fuse to blow.
Steve
SHOguy 92
New Member
Well this happened before and it would bog down the fans for about 5 seconds then blow the fuse, after a while like 3 days I tried again and it worked fine. Now I stick it in there and snap its gone right away. So where can I start my search for a un-grounded wire?
rangerj
Active Member
SHOGUY,
Just to add a little to what Steve has said, if you had a "faulty ground" you would not be blowing fuses, because you would not have a complete circuit without a "ground".
If the "hot" or "load" or + side gets "grounded", say from a wire that has been rubbed through its insulation against metal, the massive flow of current will blow the fuse when the fuse's limit is reached.
The other possibility is a fan motor that is not turning freely and drawing more and more current in an effort to get going, until the amount of current being drawn reaches the fuse's limit.
So, look in the fan motor curcuit, including the motor, switch, and any "hot" lines in the circuit.
I would look at the motor first. They get gummed up, or the bearings get dry, or the brushes get worn out and/or grounded, and are a common cause of the problem you describe.
The switch would be next on my list. If the above are not the problem, then you start chasings wires for a grounded hot wire.
The above is not in the best of electrical terms. I'll leave that for SHOZ123 or a few of our other electrical pros. rangerj
Just to add a little to what Steve has said, if you had a "faulty ground" you would not be blowing fuses, because you would not have a complete circuit without a "ground".
If the "hot" or "load" or + side gets "grounded", say from a wire that has been rubbed through its insulation against metal, the massive flow of current will blow the fuse when the fuse's limit is reached.
The other possibility is a fan motor that is not turning freely and drawing more and more current in an effort to get going, until the amount of current being drawn reaches the fuse's limit.
So, look in the fan motor curcuit, including the motor, switch, and any "hot" lines in the circuit.
I would look at the motor first. They get gummed up, or the bearings get dry, or the brushes get worn out and/or grounded, and are a common cause of the problem you describe.
The switch would be next on my list. If the above are not the problem, then you start chasings wires for a grounded hot wire.
The above is not in the best of electrical terms. I'll leave that for SHOZ123 or a few of our other electrical pros. rangerj
SHOguy 92
New Member
where is the fan motor at so I can take a look to see if it is gummed up. Also is there any wiring diagrams to show me which wires to take a look at and where those wires go to.
projectSHO89
SHOless In St L
Based on your response, I would inspect the blower motor. My suspicion is that it is the cause of your problem.
Wiring diagrams are available through the site noted in the sticky at the top of this thread. Help yourself.
Replacement instructions are at http://www.denniswolfe.com/Taurus/RepairGuide/Repair.htm Select: CHASSIS ELECTIRCAL > HEATER > BLOWER MOTOR
Bookmark that site. It has almost anything you need if you do not have a service manual.
Steve
Wiring diagrams are available through the site noted in the sticky at the top of this thread. Help yourself.
Replacement instructions are at http://www.denniswolfe.com/Taurus/RepairGuide/Repair.htm Select: CHASSIS ELECTIRCAL > HEATER > BLOWER MOTOR
Bookmark that site. It has almost anything you need if you do not have a service manual.
Steve
