Heater fan troubleshooting?

[pwjackson]

What are some good places to start looking? I get nothing when I turn my fan on.

 

[NTOLERANCE]

I always start with the fuses.

After that, I head to the component that doesnt work - in this case the motor and check for power. (assumings its easy to get at) Then, if I have power, the motor is bad, if I dont, then I back track the power loss. I always check for power with the component hooked up and turned on, this way if a relay is failing only under load, I wont get a false reading.

 

[Mullis23]

If just the blower motor is out go pick one up at napa or autozone. Pull the screws put the new one in and plug it back in. Should fix you up with some heat.

 

[MidnightBlade]

i just had a thread on that... here it ishttp://www.oilburners.net/forums/showthread.php?t=45859&highlight=heat+issues

 

[riphip]

I had to replace the fan switch on mine. Also check in the fan box to see if there are leaves or something on the resistor (red thing w/ 2 screws & 2 wires on the outside of the fan box)

Rick

 

[f-two-fiddy]

I'd almost bet it's corrosion on the resistor pack.

 

[87crewdually]

I had to replace the fan switch on mine. Also check in the fan box to see if there are leaves or something on the resistor (red thing w/ 2 screws & 2 wires on the outside of the fan box)

Rick

I'd almost bet it's corrosion on the resistor pack.

Here's a visual aid from my 87. sorry a little grainy.

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[87crewdually]

i just had a thread on that... here it ishttp://www.oilburners.net/forums/showthread.php?t=45859&highlight=heat+issues

It would be helpful to others to go back to the thread you started and post the outcome, it may help some one in the future.

 

[MidnightBlade]

havent done anything yet. waiting on time and a paycheck as soon as i get it done i will post back to that thread with the outcome.

 

[pwjackson]

Thanks guys I will check all those points this weekend when I get some time.