In loving memory of Kenis D. Keathley 6/4/81 - 3/27/22 Loving father, husband, brother, friend and firewood hoarder Rest in peace, Dexterday

Napoleon NPS45 exhaust blower motor and impeller

Discussion in 'Pellet Stoves, Pellet Fireplaces, Pellet Furnaces' started by Geek, Oct 16, 2015.

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  1. Geek

    Geek

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    FINAL VERDICT........drums.............!!!!! Issue RESOLVED...!!!

    The OAK blockage as Pete imacman had suggested initially, was the problem.
    Last night I turned the stove off, I removed the foil I used to block the holes in the burn pot, then cleaned the OAK screen outside and even used a brush to "scrub" any lints off.

    Stove ran like a charm all night even in a low heat range #2, glass much cleaner than when I covered the holes in the pot.

    I am super happy....thanks to all of you guys.....!!!
    Uploading a video in a zip file now so you see how nice the flame was this morning after 12 hours running...
     

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    Geek, Oct 20, 2015
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  2. Dpopps

    Dpopps

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    Always good when it's a easy fix.
     
    Dpopps, Oct 20, 2015
    #102 Top
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  3. Geek

    Geek

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    I plan to order the combustion blower from the online dealer anyways, he quoted me around $117 shipped with gasket to "break even" as I think it is more money, he's trying to help as he knows my long 'troubles' with the unit...:cool:
     
    Geek, Oct 20, 2015
    #103 Top
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  4. slvrblkk

    slvrblkk

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    Geek...are you getting the upgraded impeller?
     
    slvrblkk, Oct 20, 2015
    #104 Top
  5. Geek

    Geek

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    No, just whatever comes with the motor assuming the impeller comes with it?
     
    Geek, Oct 20, 2015
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  6. imacman

    imacman

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    Glad you resolved it. I mentioned it because a person (who will remain un-named :whistle:) had the same problem.
    You might want to look for a replacement piece of screen that has slightly larger mesh.
     
    imacman, Oct 20, 2015
    #106 Top
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  7. SmokeyTheBear

    SmokeyTheBear

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    How many times do we hear "My stove is so clean you can eat off of it" from the party with the issue?

    To which the standard response is:

    "yup, sure". NOW clean it again please and keep cleaning it until you do so correctly.

    Harrumph, grumble, growl, don't make me mad or I might have to show you how.

    Your stove starts at the air intake which in your case is the OAK inlet on the outside of the house and ends just after the vent termination on the outside of your house.
     
    SmokeyTheBear, Oct 21, 2015
    #107 Top
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  8. Geek

    Geek

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    Your question got me thinking......hmmmm
    I wonder if worth the shot to get the new motor but then exchange to the other impeller. You guys mentioned this would mean more heat being thrown out the exhaust pipe?
    But also remember, I think having the 11-blade impeller also 'requires' the 1.75A motor to handle it?

    So, not sure if the Fasco .95A would be ok to handle a larger impeller?
     
    Geek, Oct 21, 2015
    #108 Top
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  9. slvrblkk

    slvrblkk

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    I'm not sure that you need the larger amp motor. If you took an amp draw of that motor I don't think it would pulling more than 1.3 amps or so. I would guess your current one is drawing lower than what it's rated for
     
    slvrblkk, Oct 21, 2015
    #109 Top
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  10. jtakeman

    jtakeman Moderator

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    I'm pretty sure it will be fine. I've seen the same motor spin 6" impellers on the older Breckwells.
     
    jtakeman, Oct 21, 2015
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  11. Geek

    Geek

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    Jay, do you know if just the Fasco motor can be bought?
    The dealer tells me it comes with the big metal housing which I don't need, not trying to be cheap here but......

    I think my current impeller has 9 blades.
     
    Geek, Oct 21, 2015
    #111 Top
  12. jtakeman

    jtakeman Moderator

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    Most of these replacement combustion come with the plate and impeller as the impellers are usually seized on the shaft by the time they need replacement.... These TEFC motors run too hot for most of the combustion motor apps. So I would rather opt for the Harman or similar as it uses a C-frame motor that run a bit cooler. They also run quieter as well.

    A standard TEFC 3000 RPM motor run for $65 to $75 and you'd have to opt for an adapter($20) or remove the eared bracket on the current motor. Most of the OEM motors do not have the 3 mounting ears, But rather a 4 bolt stud mount like the convection blower.
     
    jtakeman, Oct 21, 2015
    #112 Top
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  13. Geek

    Geek

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    I was referring to the big metal housing, see red arrows in the picture attached.

    I thought I could just buy that motor which comes with the impeller mounted without the big metal housing. Removing the big metal housing would mean having to caulk that piece of pipe where you connect the appliance adapter, looking at that connection it also has some screws and one is behind which could be a PIA to remove.

    I may sound to be complicating things more than what they are, but just making sure of my best option and just be done with it.
    This Fasco motor is mounted on its plate with 3 ears/screws, and its plate is mounted on the big metal housing by 6 screws. I think the diameter of that plate is 6".

    The Harman motor you mentioned I assume is the one we were talking about before that is 11-blade and rated at 1.75A that can be bought for $1oo at GA? If not, which one specifically, can you post a link please?
     

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    Geek, Oct 21, 2015
    #113 Top
  14. jtakeman

    jtakeman Moderator

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    Ohh OK, I though you were referring the the round metal plate. I wouldn't remove the metal enclosure from your stove unless it was damaged......

    This is what I usually see. Just the round plate and the gasket.

    s-l1600.jpg

    Also note its a c frame motor, Where the one you pictured is a TEFC.

    The one pictured is available on ebay for around the same cost as the Gleason you are looking at. I would ask them if its a c frame??
     
    jtakeman, Oct 21, 2015
    #114 Top
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  15. Geek

    Geek

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    Right.
    I think I am getting to understand this better now. In summary, it does sound as the c frame motor, like the ones used by Harman in your picture is really a much better motor, hands down. Since I want to replace the motor anyway, I think that instead of buying the same motor I have shown in my picture, I will opt for the one in your picture from Gleason Avery, and I think mounting it should not be a problem in your other post, out the old Fasco and in the new Gleason Avery.

    Thanks again...!!
     
    Geek, Oct 21, 2015
    #115 Top
  16. don2222

    don2222

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    Hello
    I just wanted to say that I installed one of those 1.75 amp motors with the adapter plate in a NPI-40 and it has been running super for 2 seasons now. :)
     
    don2222, Jul 10, 2016
    #116 Top
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