AFCA Forums Home
Home Search search Menu menu Not logged in - Login | Register

 Moderated by: Steve Cunningham, Rod Rogers, Larry Hancock
New Topic Reply Printer Friendly
Lau Window Fan  Rate Topic 
AuthorPost
 Posted: Mon Nov 25th, 2019 03:03 pm
  PMQuoteReply
1st Post
Robert Swann
Guest
 

Joined: Mon Oct 21st, 2019
Location:  
Status: 
Offline
My Lau fan does not operate when I plug it into the wall.
It was in my Dad's garage, so it probably has been unused for 30+ years.

I have no idea how to see if the motor can be restored.

Any suggestions? 

Thank you.

Robert 


Attached Image (viewed 289 times):

1.jpg

Back To Top PMQuoteReply  

 Posted: Mon Nov 25th, 2019 04:36 pm
  PMQuoteReply
2nd Post
Tom Zapf
AFCA Member
 

Joined: Tue Feb 24th, 2009
Location:  
Status: 
Offline
you could have a bad cord, plug etc... have you tested those? also if my memory serves me those fans had a rehostat type speed control on the back and the contacts could be all gummed up and dirty. does the blade spin by hand? if not you might be getting power but the bushings are gummed up and need oil to soak the shaft free... does it hum when you plug it in? 

Back To Top PMQuoteReply

 Posted: Thu Nov 28th, 2019 01:04 am
  PMQuoteReply
3rd Post
Robert Swann
Guest
 

Joined: Mon Oct 21st, 2019
Location:  
Status: 
Offline
Tom,
Thank you for the information. The blade does spin.
I plugged in the cord, and nothing happens, and no humming occurs.

I will test the cord next.

I don't see any speed controls on the back.

Back To Top PMQuoteReply  

 Posted: Sat Nov 30th, 2019 01:13 am
  PMQuoteReply
4th Post
Robert Swann
Guest
 

Joined: Mon Oct 21st, 2019
Location:  
Status: 
Offline
Tom, the blade does spin.I added a new plug, and the fan started humming and turning slowly.There is a hole in the front of the fan for a speed control, but it no longer exists.

I plan to open the motor case to see if it is full of gunk.

Do you know which way I turn the allen wrench to remove the fan blade (clockwise or counter clock wise)? 



Attached Image (viewed 165 times):

3.jpg

Back To Top PMQuoteReply

 Posted: Sat Nov 30th, 2019 04:13 am
  PMQuoteReply
5th Post
Charles Tedrick
AFCA Member


Joined: Sun May 8th, 2011
Location: Canton,Oh
Status: 
Offline
Robert Swann wrote: Tom, the blade does spin.I added a new plug, and the fan started humming and turning slowly.There is a hole in the front of the fan for a speed control, but it no longer exists.

I plan to open the motor case to see if it is full of gunk.

Do you know which way I turn the allen wrench to remove the fan blade (clockwise or counter clock wise)? 

Counterclockwise  :up:


Back To Top PMQuoteReply  

 Posted: Sat Nov 30th, 2019 04:46 am
  PMQuoteReply
6th Post
Robert Swann
Guest
 

Joined: Mon Oct 21st, 2019
Location:  
Status: 
Offline
Thank you Charles!

Back To Top PMQuoteReply

 Posted: Sat Nov 30th, 2019 06:28 pm
  PMQuoteReply
7th Post
Rob Duffy
AFCA Member


Joined: Fri Jun 27th, 2008
Location: USA
Status: 
Offline
Fix it up and enjoy it! I'm certain you'll be impressed with the performance. These fans are very simple and well built. Those Fasco motors are very stout and powerful. She likely just needs a good cleaning and some oil.

I believe the fan is marketed as a "Niteaire" by LAU. It's an 18" blade with a motor that spins about 1550 RPM, comparable to a modern high velocity fan. These were designed to act as a whole house window fan, which is why the "front" grille is exposed. That would be the side that faces out the window.

I have this exact model, a 3 speed. Get yours running well and you'll soon find out that this thing is far better than anything you could buy in a store today. Definitely worth saving, not scrapping.

Video is not mine:


Last edited on Sat Nov 30th, 2019 06:35 pm by Rob Duffy

Back To Top PMQuoteReply  

 Posted: Tue Dec 3rd, 2019 05:18 am
  PMQuoteReply
8th Post
Robert Swann
Guest
 

Joined: Mon Oct 21st, 2019
Location:  
Status: 
Offline
Thanks for the information Rob.
I see that there are two oil openings. How much oil do you put in your Lau fan, and what type of oil do you use? 

I remember the fan as a young boy at my father's showroom in the Dallas Furniture mart, and it was extremely powerful.   
I definitely won't scrap it.

Thanks 

Robert 

Back To Top PMQuoteReply

 Posted: Tue Dec 3rd, 2019 04:37 pm
  PMQuoteReply
9th Post
Rob Duffy
AFCA Member


Joined: Fri Jun 27th, 2008
Location: USA
Status: 
Offline
Robert Swann wrote: Thanks for the information Rob.
I see that there are two oil openings. How much oil do you put in your Lau fan, and what type of oil do you use? 

I remember the fan as a young boy at my father's showroom in the Dallas Furniture mart, and it was extremely powerful.   
I definitely won't scrap it.

Thanks 

Robert 

Being that your fan is gummed up and on the stiff side, I would give it quite a bit of oil and manually spin the blade by hand until free. Each oil port might need several drops, 10, 15, maybe more. When I come across a motor that's locked up, I generally put some paper towels or a rag underneath the motor and add oil until the motor spins freely. Oil will likely drip from the bottom of the motor. Use the rag or paper towel to clean this up.

As for the type of oil to use, you'll want something like 3-IN-ONE oil in the blue and red can. It will say specifically for fractional horsepower motors. You can find this oil online or at an ACE hardware or similar. Another highly recommended oil is Zoomspout.

Attached Image (viewed 55 times):

G20.jpg

Back To Top PMQuoteReply  

Current time is 04:56 am  
AFCA Forums > Antique Fan Collectors Association > Post-1950 (Vintage) > Lau Window Fan Top



Beige Theme By: Di @ UltraBB
UltraBB 1.17 Copyright © 2007-2008 Data 1 Systems
Page processed in 0.1594 seconds (14% database + 86% PHP). 29 queries executed.