As always, this site has all the answers. The blower/fan for my heater/AC will not work. All the speeds are dead. The first one went out some time ago and now all are gone. I read the recent post with the same problem and was linked to an old post which talked about the resistors down by the driver's right foot. I am going to start by replacing this item. How much does it cost and is it carried by any parts stores besides the dealer. I saw in the post that radio shack may have them? Also, how long does it take to remove and replace? As always, thanks for any help.
blower for heater
- Thread starter markkos
- Start date
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i tried to fix mine and got frusterated.
i bought a new aftermarket blower from napa for a hundred bucks or so. it's an easy install, quiet, feels cheap, but still working 1 year later.
i bought a new aftermarket blower from napa for a hundred bucks or so. it's an easy install, quiet, feels cheap, but still working 1 year later.
can you put a link to the other thread? - I've lost two speeds on mine and want to fix it soon. I'm pretty good electrically so I might be able to help you back...
- Thread starter
- #5
https://forum.ih8mud.com/showthread.php?t=186056
Thanks for the reply. I am not good at linking stuff, but i copied the link that was given. I you look right below my post, there is another one titled "fj62 blower motor resistor" and the reply to that one gives you the link also and maybe some advice. I would appreciate any info. you can provide. Again, thanks.
Thanks for the reply. I am not good at linking stuff, but i copied the link that was given. I you look right below my post, there is another one titled "fj62 blower motor resistor" and the reply to that one gives you the link also and maybe some advice. I would appreciate any info. you can provide. Again, thanks.
Hi Markkos,
After I posted I searched for Blower and resistor and found lots of info. I'm pretty sure after a lot of reading that MY problem is the resistors. I am going to see if they are repairable and if not I'll probably replace them with large ceramic resistors from an electrical supply store. In any case - not a simple in/out fix unless you pay the big bucks for the OEM unit.
Your problem sounds like it could be the resistors OR perhaps your brushes are wearing out - there was one post I read that said that someone lost speeds from low to high and it was cause the motor was needing more and more power just to kick itself into running - try connecting your blower straight to battery power and if that doesn't run it, you should probably look at the brushes.
I'll post again after I go at it...
After I posted I searched for Blower and resistor and found lots of info. I'm pretty sure after a lot of reading that MY problem is the resistors. I am going to see if they are repairable and if not I'll probably replace them with large ceramic resistors from an electrical supply store. In any case - not a simple in/out fix unless you pay the big bucks for the OEM unit.
Your problem sounds like it could be the resistors OR perhaps your brushes are wearing out - there was one post I read that said that someone lost speeds from low to high and it was cause the motor was needing more and more power just to kick itself into running - try connecting your blower straight to battery power and if that doesn't run it, you should probably look at the brushes.
I'll post again after I go at it...
OK, I'm back. The resistor is just to the right and up a bit from the gas pedal. One post I read described it as
put your foot on the BRAKE pedal.
Rotate your toe so it touches the gas pedal.
your toe is now pointing at the resistor.
it's a 4 wire connector attaching to a black plastic receptacle built onto the heater ducting. 2 screws and a bit of reaching gets it out.
there are 4 connectors and they attach to 3 springlike wire resistors that seem to have different sizes and resistances I measured 2.5 ohms, 5 ohms and 8 ohms for the different ones. My 8 ohm resistor (the smallest one that bridges the other 2) was burned out (ie - had a gap burned in the wire coil)
I cleaned the ends at the gap, and carefully soldered it back together and after checking for continuity, hooked it up to the wiring harness.
Works fine now. all speeds are back (interesting that one burned resistor killed 2 speeds on the fan)
I don't know how long it will last - I ran it for only about a minute off the battery, it's too late to go for a drive but I'll give it a good run tomorrow - with the higher voltage that the engine produces, and I'll see if it melts again and makes me start from scratch.
put your foot on the BRAKE pedal.
Rotate your toe so it touches the gas pedal.
your toe is now pointing at the resistor.
it's a 4 wire connector attaching to a black plastic receptacle built onto the heater ducting. 2 screws and a bit of reaching gets it out.
there are 4 connectors and they attach to 3 springlike wire resistors that seem to have different sizes and resistances I measured 2.5 ohms, 5 ohms and 8 ohms for the different ones. My 8 ohm resistor (the smallest one that bridges the other 2) was burned out (ie - had a gap burned in the wire coil)
I cleaned the ends at the gap, and carefully soldered it back together and after checking for continuity, hooked it up to the wiring harness.
Works fine now. all speeds are back (interesting that one burned resistor killed 2 speeds on the fan)
I don't know how long it will last - I ran it for only about a minute off the battery, it's too late to go for a drive but I'll give it a good run tomorrow - with the higher voltage that the engine produces, and I'll see if it melts again and makes me start from scratch.
my brushes were worn down to almost nothing. this must be common on rigs this old.
Drove around for 1/2 hour today with the fan on speed one (using all the resistors) seems to be working fine with the break in the resistor twisted and soldered back together. Easy fix if you own a soldering gun.. 1/3
Going to pull the blower motor and the windshield wiper motor when I have a moment and check on their brushes- better to change them before they self destruct!
Going to pull the blower motor and the windshield wiper motor when I have a moment and check on their brushes- better to change them before they self destruct!
REKCUT
SILVER Star
Get a used one on the parting out section for $20 and just replace the whole motor.
I would think that replacing brushes on a working motor would be better than putting in a whole unknown motor, since most 60's have higher mileage than mine, especially if they are being parted. It may not be easy to find the "proper" brushes for your fan but you can go to any good electric motor repair or parts place and find brushes that are close in size and then file them to fit. Usually brushes will cost you between $5 and $15, and then you can reassemble your own motor - add a bit of lubrication and it will probably take you to beyond the lifespan of the truck.
The motor brushes in my heater motor went out about two years ago. I didn't have any money to really fix it at the time, so I stole the spare motor brushes from the Harbor Freight 4 1/2" grinder I have. They needed some filing to fit. I soldered them on, braided wire to braided wire and they have been in there since.
There is probably a right way, buy brushes etc.
There is probably a right way, buy brushes etc.
REKCUT
SILVER Star
It is real easy to look at he brushes on a replacement motor and tell if they are there or gone.
