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Home > Archive > Home Repair forum > July 2008 > Leslie-Locke attic ventilator
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Leslie-Locke attic ventilator
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| tom_sawyer70@yahoo.com 2005-07-18, 6:26 pm |
| Hello,
I have a Leslie-Locke attic ventilator that does not work anymore. The
motor does not appear to be seized, but obviously there is a problem
somewhere.
My questions are:
1. Is there an easy way to test/verify the motor itself?
2. I cannot seem to locate "leslie locke" fan products to find a
replacement motor and the search returns that I've found appear to
indicate that they are in other businesses. Does anyone know whether
the attic fans from this company are produced under another name that I
could find parts for? I saw one article that seemed to imply that
"masterflow" fans are leslie-locke.
Thank you,
Dave
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<tom_sawyer70@yahoo.com> wrote in message
news:1121713890.687005.45090@z14g2000cwz.googlegroups.com...
quote:
> Hello,
> I have a Leslie-Locke attic ventilator that does not work anymore. The
> motor does not appear to be seized, but obviously there is a problem
> somewhere.
>
> My questions are:
> 1. Is there an easy way to test/verify the motor itself?
>
> 2. I cannot seem to locate "leslie locke" fan products to find a
> replacement motor and the search returns that I've found appear to
> indicate that they are in other businesses. Does anyone know whether
> the attic fans from this company are produced under another name that I
> could find parts for? I saw one article that seemed to imply that
> "masterflow" fans are leslie-locke.
>
> Thank you,
> Dave
Yes anyone with the tools can test a motor. I will assume you do not have
the tools necessary.
Fractional hp motors are usually go, no go.
I will bet that LL did not make the motor. Remove the motor and probably
the fan blade from the housing and look at the specs of the motor. Match the
rpm closely. The HP rating can be a little higher and not create any
problems. Example replace a 1/6 hp motor with a 1/3 hp.
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| tom_sawyer70@yahoo.com 2005-07-18, 6:26 pm |
| SQLit - The label on the motor had Leslie-Locke on it (I don't have it
in front of me) and some of the specs (i.e., 3.5A). I will take
another look.
Thank you,
Dave
| |
| Stretch 2005-07-18, 11:25 pm |
| Don't onersize a motor by a lot. The air flow across the motor will
not change, but the larger motor will produce more heat. Heat is the
enemy of any motor, and the air carries the heat away, Oversizing a
motor will lead to early failure. Ask any motor rep.
Stretch
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| meirman 2005-07-19, 4:25 am |
| In alt.home.repair on 18 Jul 2005 12:11:30 -0700
tom_sawyer70@yahoo.com posted:
quote:
>Hello,
>I have a Leslie-Locke attic ventilator that does not work anymore. The
>motor does not appear to be seized, but obviously there is a problem
>somewhere.
With the power off, when you try to turn it by hand, with the blade
attached, is it real easy? It should be no harder than the weight of
the blade and armature would make it. When you start it off, does it
spin by itself for a while.
quote:
>My questions are:
>1. Is there an easy way to test/verify the motor itself?
>
>2. I cannot seem to locate "leslie locke" fan products to find a
>replacement motor and the search returns that I've found appear to
>indicate that they are in other businesses. Does anyone know whether
>the attic fans from this company are produced under another name that I
>could find parts for? I saw one article that seemed to imply that
>"masterflow" fans are leslie-locke.
The first time I replaced my roof fan moter with one from the fan
maker. Later it turned out to be easier just to take the motor to a
motor store and let them sell me a replacement. There are only two
motor stores in Baltimore and the surrounding counties (2 million
people?) , and for some reason one of them didn't work out. Maybe it
only had bigger motors.
As with anything you should permanently save the original values, and
compare what they recommend with them, before you leave the store, but
unless they make a big booboo, they'll sell you what you need, with
the same specs as what you've got.
I'm on my fourth motor in 22 years. They last from 7 to 2 years. I
wish I knew why but it's only a half hour and not a lot of money to
replace them, so I do. The first one lasted 7, the replacement from
them lasted 2, and the current one is nearing 7.
quote:
>Thank you,
>Dave
Meirman
--
If emailing, please let me know whether
or not you are posting the same letter.
Change domain to erols.com, if necessary.
| |
| tom_sawyer70@yahoo.com 2005-07-19, 4:25 am |
|
meirman wrote:
quote:
>
> With the power off, when you try to turn it by hand, with the blade
> attached, is it real easy? It should be no harder than the weight of
> the blade and armature would make it. When you start it off, does it
> spin by itself for a while.
>
Yes, there is little/no friction.
quote:
> The first time I replaced my roof fan moter with one from the fan
> maker. Later it turned out to be easier just to take the motor to a
> motor store and let them sell me a replacement. There are only two
> motor stores in Baltimore and the surrounding counties (2 million
> people?) , and for some reason one of them didn't work out. Maybe it
> only had bigger motors.
>
Unfortunately, there does not appear to be anything similar locally.
quote:
> As with anything you should permanently save the original values, and
> compare what they recommend with them, before you leave the store, but
> unless they make a big booboo, they'll sell you what you need, with
> the same specs as what you've got.
>
Will do. Thank you for the info.
Dave
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| tom_sawyer70@yahoo.com 2005-07-19, 6:25 pm |
| All -
If anyone responding does not mind, I can send a link to pictures (I
didn't want to solicit anyone via email without asking first).
The model number on the circular plating that lines the vent in the
roof is marked: PR4\PSR10.
The motor label states:
Leslie-Locke Bldg. Products
Model F0816B2528 E62788
120V 60Hz 3.5A 1050RPM
Thermally protected L, E62862
Capacitor 10MFD 370VAC
There is no stamp or other information that I can find on the motor
itself.
There is an additional metal container attached with two wires that is
labeled:
CSC ECCOL NO PCBs
A combustible fluid
Use care in disposal 10UF/370VAC Made in USA....and an address, etc.
My guess is that this is some type of fluid-based capacitor (obviously,
I'm on a learning curve here) that I may not need in a newer motor.
I am going to call around to some of the electrical places today, but
if you can provide any additional information, I would appreciate it.
Thank you,
Dave
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| tom_sawyer70@yahoo.com 2005-07-24, 9:10 pm |
| As a follow up to my question on the attic ventilator, I purchased a
new motor with specs as close to I could to what I have (RPM is the
same at 1050, but the AMPs are 4.3 instead of 3.5).
I installed it and my only concern is that there is vibration that you
can see in the hood when the motor is running. I checked the level of
the motor and it appears to be level set within the belly bands. I
also checked the fan blade clearance and they all seem to be the same.
I don't really have a frame of reference for how the old unit behaved,
but I'm concerned that any vibration will translate to heat in the
motor. The only other thing I can think of is that the skirt to which
attach the motor to the circular perimeter has a little play...not
much, but it could be that the motor itself is vibrating the skirt,
which in turn is vibrating the hood.
Is there play in a typical system, or is there something else I should
check? The roof is fairly new, so I don't think that there's much in
the way of decayed wood, etc.
I know I could have hired someone to do this, but I really wanted to do
it myself. I appreciate your patience and replies.
Thank you,
Dave
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| tom_sawyer70@yahoo.com 2005-07-24, 9:10 pm |
|
Post-followup...after awhile of letting the motor run, the environment
does not appear to be cooling (i.e., the fan now runs continuously on
the highest setting.
So, I figure that it's either a lack of soffits or the hood is
restricting the air from flowing out at a rate sufficient for the fan.
While I believe the soffits are adequate, I will double-check them
tomorrow.
Can a hood restrict enough of the air flow to be a hinderance for a
1050 RPM fan?
Thank you,
Dave
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| chalupa 2005-08-24, 2:21 am |
|
Did you resolve your issues?
I have the same problem... except my Leslie Locke motor doesn't list
RPMs, so I'm sort of clueless on replacement.
LESLIE LOCK BLDG. PRODUCTS
P/N - 909312 - UL E146880
120V 60Hz 4.0 AMPS
ELECTRICAL INSULATION UL 14460BJY3 CLASS A
THERMALLY PROTECTED UL547 X CM02
DOW - 136 - 0 - 40 - XIN
MADE IN CHINA 01 - 99
The tubular part of the hood that the fan mounts in seems to be about
17" diamter if that helps. The fan itself is a 3-blade with what seems
to me to be a steep pitch to the blades... i.e. should move a lot of
air at relatively low RPM.
FYI, I did find this Master Flow replacement motor at Home Depot online
for $41.95...
[image:
http://imagex.homedepot.com/f/248/1...us/161623_3.jpg]
A direct link didn't work but you can go to homedepot.com and search
for Master Flow.
I note that this same replacement motor is used for ALL of the Master
Flow attic fans that Home Depot carries -- both roof and gable mounted.
Interestingly, these fans have different diameter and CFM airflow
ratings. So perhaps the RPM on these things is fairly standard... i.e.
I can slap that puppy on my fan and life will be good? From the photo
the motor mounting looks the same as my Leslie Locke.
Or perhaps I'd be better buying a complete unit and cannibalizing the
motor and fan to keep them matched? (I'd rather not replace everything
because I don't want to mess with the roof shingles.)
--
chalupa
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| tom_sawyer70@yahoo.com 2005-08-24, 2:21 pm |
|
chalupa wrote:
> Did you resolve your issues?
>
> I have the same problem... except my Leslie Locke motor doesn't list
> RPMs, so I'm sort of clueless on replacement.
>
> LESLIE LOCK BLDG. PRODUCTS
> P/N - 909312 - UL E146880
> 120V 60Hz 4.0 AMPS
> ELECTRICAL INSULATION UL 14460BJY3 CLASS A
> THERMALLY PROTECTED UL547 X CM02
> DOW - 136 - 0 - 40 - XIN
> MADE IN CHINA 01 - 99
>
> The tubular part of the hood that the fan mounts in seems to be about
> 17" diamter if that helps. The fan itself is a 3-blade with what seems
> to me to be a steep pitch to the blades... i.e. should move a lot of
> air at relatively low RPM.
>
> FYI, I did find this Master Flow replacement motor at Home Depot online
> for $41.95...
> [image:
> http://imagex.homedepot.com/f/248/1...us/161623_3.jpg]
> A direct link didn't work but you can go to homedepot.com and search
> for Master Flow.
>
> I note that this same replacement motor is used for ALL of the Master
> Flow attic fans that Home Depot carries -- both roof and gable mounted.
> Interestingly, these fans have different diameter and CFM airflow
> ratings. So perhaps the RPM on these things is fairly standard... i.e.
> I can slap that puppy on my fan and life will be good? From the photo
> the motor mounting looks the same as my Leslie Locke.
>
> Or perhaps I'd be better buying a complete unit and cannibalizing the
> motor and fan to keep them matched? (I'd rather not replace everything
> because I don't want to mess with the roof shingles.)
>
>
> --
> chalupa
Chalupa,
I ended up finding a motor on eBay (Lomanco, I believe, with similar
ratings). However, the motor spins and appears to vibrate rather
excessively (the canopy above the fan can be seen vibrating from the
yard). I have not had a chance to really investigate whether there is
a problem with the fan blades, or whether the fan is too close to the
canopy and there is not enough space for the air to probably escape
(i.e., putting pressure on the canopy). When I initially got it
working, I did not notice a pull of air through the space, but I
haven't had a chance to get on the roof to see if air is being
propelled out of the attic.
I will hopefully have time this weekend.
Dave
| |
| jsaklas 2005-08-29, 2:21 pm |
|
tom_sawyer70@yahoo.com Wrote:
> chalupa wrote:-
> Did you resolve your issues?
>
> I have the same problem... except my Leslie Locke motor doesn't list
> RPMs, so I'm sort of clueless on replacement.
>
> LESLIE LOCK BLDG. PRODUCTS
> P/N - 909312 - UL E146880
> 120V 60Hz 4.0 AMPS
> ELECTRICAL INSULATION UL 14460BJY3 CLASS A
> THERMALLY PROTECTED UL547 X CM02
> DOW - 136 - 0 - 40 - XIN
> MADE IN CHINA 01 - 99
>
> The tubular part of the hood that the fan mounts in seems to be about
> 17" diamter if that helps. The fan itself is a 3-blade with what
> seems
> to me to be a steep pitch to the blades... i.e. should move a lot of
> air at relatively low RPM.
>
> FYI, I did find this Master Flow replacement motor at Home Depot
> online
> for $41.95...
> [image:
> http://tinyurl.com/aswe6
> A direct link didn't work but you can go to homedepot.com and search
> for Master Flow.
>
> I note that this same replacement motor is used for ALL of the Master
> Flow attic fans that Home Depot carries -- both roof and gable
> mounted.
> Interestingly, these fans have different diameter and CFM airflow
> ratings. So perhaps the RPM on these things is fairly standard...
> i.e.
> I can slap that puppy on my fan and life will be good? From the
> photo
> the motor mounting looks the same as my Leslie Locke.
>
> Or perhaps I'd be better buying a complete unit and cannibalizing the
> motor and fan to keep them matched? (I'd rather not replace
> everything
> because I don't want to mess with the roof shingles.)
>
>
> --
> chalupa-
>
> Chalupa,
> I ended up finding a motor on eBay (Lomanco, I believe, with similar
> ratings). However, the motor spins and appears to vibrate rather
> excessively (the canopy above the fan can be seen vibrating from the
> yard). I have not had a chance to really investigate whether there is
> a problem with the fan blades, or whether the fan is too close to the
> canopy and there is not enough space for the air to probably escape
> (i.e., putting pressure on the canopy). When I initially got it
> working, I did not notice a pull of air through the space, but I
> haven't had a chance to get on the roof to see if air is being
> propelled out of the attic.
>
> I will hopefully have time this weekend.
>
> Dave
I also had the same problem. This past week after 7 years my Leslie
Locke attic roof ventilator's motor finally died.
I found, on the shelf, a replacement motor at Lowe's for $31.00. It is
not a Leslie Locke but it is the exact same size and rpm (1050rmp) and,
effectively, the same amperage (i.e 3.4 vs 3.5 amps). I installed it
yesterday and there is no vibration and it's working perfectly.
--
jsaklas
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| Attic Fan 2008-07-24, 8:00 pm |
| I agree- It does seem as if the GAF Masterflow and the Leslie Locke attic fans are related.I got a Free On line estimate that was pretty cool. All I did was upload a couple pictures of the fan-they gave me a price to repair that same day. I tried to paste the link but I am not sure if it will post..so the name of the site is www.suburbanfan.com
Home depot sells these product too !
Good Luck !
quote:
Originally posted by tom_sawyer70@yahoo.com
Hello,
I have a Leslie-Locke attic ventilator that does not work anymore. The
motor does not appear to be seized, but obviously there is a problem
somewhere.
My questions are:
1. Is there an easy way to test/verify the motor itself?
2. I cannot seem to locate "leslie locke" fan products to find a
replacement motor and the search returns that I've found appear to
indicate that they are in other businesses. Does anyone know whether
the attic fans from this company are produced under another name that I
could find parts for? I saw one article that seemed to imply that
"masterflow" fans are leslie-locke.
Thank you,
Dave
www.suburbanfan.com |
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