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Temporarily converting HVAC fan speed from 3 spd to single spd. X-posted


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Hi mat in tn,

Oh yeah its shot, ohm and continuity zero it is toast. I cleaned and re smashed the crimps nothing worked. I am going to turn it in to a single speed fan tomorrow.

Thanks for you're post.

Mine was shot too, the fusible link in there was an open circuit. I did find a replacement for only about $30 locally, but that was in 2017 before all the dismantling of our economy started. And before I knew that O'Reallys has high prices unless you stick to sale items.

Rock Auto has it for less than $20 but of course you need to pay shipping. I always try my local NAPA now first. They actually know about what they sell, shocking. One guy is a carb whiz and sold me his own personal spare needle and seat for Poncho Loco's Holley 2300 yesterday.

RockAuto

 

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Mine was shot too, the fusible link in there was an open circuit. I did find a replacement for only about $30 locally, but that was in 2017 before all the dismantling of our economy started. And before I knew that O'Reallys has high prices unless you stick to sale items.

Rock Auto has it for less than $20 but of course you need to pay shipping. I always try my local NAPA now first. They actually know about what they sell, shocking. One guy is a carb whiz and sold me his own personal spare needle and seat for Poncho Loco's Holley 2300 yesterday.

RockAuto

Hi Reno,

I couldn't find the exact part on rockauto for the first time in awhile. I did find it at a few other retailers. This is the small difference the corner is notched out and the blower box accommodates the corner being cut out. Found one dont recall where but $47.00.

5e0d8d15d056a1c79eb30b04a3227d9b.jpg.be13bee2311a82254beab7e613e2c1c9.jpg

I like napa and rockauto too have shopped a bit with a1 auto aswell.

Dismantling of the economy for globalism. What a con job.

 

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Hi Reno,

I couldn't find the exact part on rockauto for the first time in awhile. I did find it at a few other retailers. This is the small difference the corner is notched out and the blower box accommodates the corner being cut out. Found one dont recall where but $47.00.

I like napa and rockauto too have shopped a bit with a1 auto aswell.

Dismantling of the economy for globalism. What a con job.

Click that link I posted, there are 5 types in stock. RockAuto ships pretty fast but it's not cheap.

Here's the link again

https://www.rockauto.com/en/catalog/ford,1986,f-350,6.9l+420cid+v8+diesel,1126347,heat+&+air+conditioning,blower+motor+control+module+/+resistor,6557

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Click that link I posted, there are 5 types in stock. RockAuto ships pretty fast but it's not cheap.

Here's the link again

https://www.rockauto.com/en/catalog/ford,1986,f-350,6.9l+420cid+v8+diesel,1126347,heat+&+air+conditioning,blower+motor+control+module+/+resistor,6557

Hi Reno,

Those look a bit different referring to the corner notch and those appear to be the air conditioner type referring to the ground prong.

Screenshot_20211203-125935_Samsung_Internet.thumb.jpg.d6b6a96696b5b52a6e7b8a3380753592.jpg

If i understand correctly the air conditioner had 4 prongs and non air like mine had 3 prongs and a corner of the board cut off.

5e0d8d15d056a1c79eb30b04a3227d9b.jpg.768a788df735e26ee69712ba4ced69ca.jpg

20211127_132817.jpg.587713ccc156564b072040db15cd5662.jpg

Thanks for your post.

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  • 2 weeks later...

Hi mat in tn,

Oh yeah its shot, ohm and continuity zero it is toast. I cleaned and re smashed the crimps nothing worked. I am going to turn it in to a single speed fan tomorrow.

Thanks for you're post.

Hello All,

Hope everyone had a good weekend.

The single speed rewire is done. I let it run for about 40 minutes today. Ran great and noticeably more air movement. Though thought to be temporary I may make it permanent.

My wiring is a mess will tightens it up later.

20211213_132302.jpg.270f5c919d70eff800eb9eb3bd507b00.jpg

20211213_132250.jpg.5d5c7eeba1c57f6a1d1ed9941ada56d4.jpg

The mockup wiring diagram I used.

20211213_074637.jpg.65213b901e04accaeadd16409a67f235.jpg

I wanted to keep everyone posted. All done and works better then expected....... So far.

Thanks for your interest and input..

 

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Hello All,

Hope everyone had a good weekend.

The single speed rewire is done. I let it run for about 40 minutes today. Ran great and noticeably more air movement. Though thought to be temporary I may make it permanent.

My wiring is a mess will tightens it up later.

The mockup wiring diagram I used.

I wanted to keep everyone posted. All done and works better then expected....... So far.

Thanks for your interest and input..

Glad it worked so well. Thanks for following up. :nabble_smiley_good:

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