Whole house fan capacitor

Whole house fan capacitor DEFAULT

Whole House Fan Motor Problem

Radu Tenenbaum's profile photo

Radu Tenenbaum

unread,
Jul 30, 2002, 12:13:17 AM7/30/02

Reply to author

Sign in to reply to author

Forward

Sign in to forward

Delete

You do not have permission to delete messages in this group

Link

Report message as abuse

Sign in to report message as abuse

Show original message

Either email addresses are anonymous for this group or you need the view member email addresses permission to view the original message

to

I have a two speed whole house fan that was already installed when we
bought the house ten years ago. It is a belt driven system and has
worked well until recently.

A few months ago, when starting at low speed, it would only hum and
would not get going. However, it would start in high speed mode, and
once it got going, you could go to low speed.

A week ago, even the high speed mode became intermittent. Sometimes
it would start OK, but other times it would only make a hum, like it
was trying, but it would not start. In those instances, I can give
the belt a tug and it then starts and runs OK.

Both motor and fan assembly seem to turn ok when I manipulate them
manually. It's not super loose, but it doesn't bind either.

I've done a Google search and found some references to a starter
capacitor. Could this be the culprit here, and if so, where is it -
inside the motor housing? There's no obvious capacitor hanging on
the outside of the motor. And if that's the problem, how can I tell
if the cap is bad?

If it's not the cap, any other suggestions?

Thanks,

Radu

Joe's profile photo

Joe

unread,
Jul 30, 2002, 1:17:03 AM7/30/02

Reply to author

Sign in to reply to author

Forward

Sign in to forward

Delete

Link

Report message as abuse

Sign in to report message as abuse

Show original message

Either email addresses are anonymous for this group or you need the view member email addresses permission to view the original message

to

<< any other suggestions? >>


To get best ideas, post more information, like the entire specs listed on the
motor label. Not likely a capacitor because caps are large bulky things no
motor engineer likes to tuck inside the works. My guess is that you have a
funky starting winding and/or switch. Repair or replacement is your next move,
so go ahead and pull the motor out. They're easy to disassemble, and the fault
might be obvious, like a fried winding (replace motor) or a dirty centrifugal
switch (clean and adjust). Good luck.

Joe

jriegle's profile photo

jriegle

unread,
Jul 30, 2002, 2:59:57 AM7/30/02

Reply to author

Sign in to reply to author

Forward

Sign in to forward

Delete

You do not have permission to delete messages in this group

Link

Report message as abuse

Sign in to report message as abuse

Show original message

Either email addresses are anonymous for this group or you need the view member email addresses permission to view the original message

to


Radu Tenenbaum <[email protected]> wrote in message
news:[email protected]


> I have a two speed whole house fan that was already installed when we
> bought the house ten years ago. It is a belt driven system and has
> worked well until recently.
>
> A few months ago, when starting at low speed, it would only hum and
> would not get going. However, it would start in high speed mode, and
> once it got going, you could go to low speed.
>
> A week ago, even the high speed mode became intermittent. Sometimes
> it would start OK, but other times it would only make a hum, like it
> was trying, but it would not start. In those instances, I can give
> the belt a tug and it then starts and runs OK.
>
> Both motor and fan assembly seem to turn ok when I manipulate them
> manually. It's not super loose, but it doesn't bind either.

cut the power and remove the belt. Turn the motor shaft by hand. It should
turn very freely. Check the fan also. It could be bearings. I had a fan in a
window AC that turned, but was rather stiff and hard for the motor to get
turning. It did not squeak as I would have thought.
John

Union 134's profile photo

Union 134

unread,
Jul 30, 2002, 3:35:34 AM7/30/02

Reply to author

Sign in to reply to author

Forward

Sign in to forward

Delete

Link

Report message as abuse

Sign in to report message as abuse

Show original message

Either email addresses are anonymous for this group or you need the view member email addresses permission to view the original message

to

the moter cap is under a metel cover on the side of the moter.Many times when
they go bad you will see a tar like goo coming out of the top.They can go bad
if something is holding back the moter or the switch inside the moter is going
bad.
Mark H.

Edwin Pawlowski's profile photo

Edwin Pawlowski

unread,
Jul 30, 2002, 4:27:23 AM7/30/02

Reply to author

Sign in to reply to author

Forward

Sign in to forward

Delete

You do not have permission to delete messages in this group

Link

Report message as abuse

Sign in to report message as abuse

Show original message

Either email addresses are anonymous for this group or you need the view member email addresses permission to view the original message

to


"Radu Tenenbaum" <[email protected]> wrote in message
>

> A few months ago, when starting at low speed, it would only hum and
> would not get going. However, it would start in high speed mode, and
> once it got going, you could go to low speed.

This often is the symptoms of bearing starting to go. See if you can lube
them. If not, replace.
Ed
[email protected]
http://pages.cthome.net/edhome

Sours: https://groups.google.com/

How to Wire a 2-Speed Whole-House Fan

  • Turn off the 2-speed whole-house fan's circuit breaker. This circuit breaker should control all electrical circuits in the attic.

  • Remove the screws holding the fan switch's electrical-connection box's cover in place with the correct screwdriver, often a 1/4-inch hex-head screwdriver. Remove the lid.

  • Look at and understand the whole-house fan's electrical connections. The box contains two leads -- short wires -- for the power supply to connect to. One lead runs to the whole-house fan's switch, and the other lead travels to the fan motor's neutral connection. Usually the switch's lead has black insulation, and the neutral lead has white insulation. The screw with green paint, which connects to the electrical box, acts as a ground connection.

  • Push the wire set feeding electricity to the 2-speed whole-house fan into the electrical box. The box usually has a round hole with grommets for wire access. If the hole does not have a grommet, then install a wire clamp in the hole and push the wire through the wire clamp.

  • Strip 1/2 inch of insulation from each insulated wire in the 2-speed whole-house fan's electrical box with wire strippers. Four wires have insulation.

  • Encircle the wire set's ground wire around the 2-speed whole-house fan's ground screw. Tighten the ground screw with the screwdriver.

  • Wrap the end of the 2-speed whole-house fan switch's lead around the end of the wire set's black wire. Tie these wires together with a wire nut.

  • Wrap the end of the wire leading to the 2-speed whole-house fan's neutral wire around the end of the wire set's white wire. Tie these wires together with a wire nut.

  • Replace the fan switch's electrical-connection box's lid and screw. Turn the circuit breaker on and test the fan.

  • Sours: https://homesteady.com/12441369/how-to-wire-a-2-speed-whole-house-fan
    1. Long short funds vanguard
    2. 2006 tundra transmission fluid
    3. Dodge charger spoiler 2016
    4. Top qb prospects
    Hello

    Our hallway whole house fan pooped out again! This time just want a new motor, it should be cheaper and easier to replace. It is direct drive and 24" fan blade and 28" square overall.

    Has anyone seen just the motor for this? The Fan is a Home Depot Master Flow WHF24
    See pics and motor tag below:

    Pic 1 - Whole House Fan
    Pic 2 - Fan Model #
    Pic 3 - Motor tag

    Motor Tag
    Model D-XIN-PSC-6P28P-1/4HP-DR E0209515
    120Vac 60Hz 5.0 Amp
    1/4HP Single Phase1075 RPM
    INSUL Class A Continuous
    Resettable Thermal Protector E214731
    Changzhou New Zone Desheng Elec. Appliance Co LTD.

    Here is a guy looking for a similar motor. Hope this one is easier to source out?
    http://www.doityourself.com/forum/d...n-systems/387593-motor-whole-house-fan.html#b
    He did get a good suggestion
    Replacement motor for master flow 24" attic fan

    I just ordered a replacement motor directly from Master Flow, a division of GAF. If you have your original paperwork, there is a 10 year warranty and it should be no cost for the part just shipping. ​

    You can view the attic fan at: MasterFlow Whole House Fans​

    The replacement motor can be purchased by calling 1-877-423-2665 (Master Flow customer service) for $74.48 including shipping. I spoke with Chris there. Their part number is V909319.​

     

    Sours: https://www.hearth.com/talk/threads/sourcing-a-motor-to-replace-a-whole-house-fan.112041/

    Joseph Gilmore of Gilmore Consulting Services, LLC explains how this home was losing energy through an old whole - house fan and what was done to reduce the en. He brought this fan to us and installed it in July. We love to have the windows open and enjoy fresh air during the spring and fall, and this fan is so powerful, it completely exchanges the air in the whole house about every two minutes. Not very happy about this but it can be restored.


    The MOTOR30BD is the replacement motor for the Master Flow in.

    Belt Drive Whole House Fan (30BWHFS).

    This motor includes the capacitor and is ready for installation.

    The motor is easy to install with. Could be thermostat, motor, motor capacitor (if it uses one), electrical switch, bird or bees nest stopping the fan from turning, wire connection came loose, squirrel chewed wires, etc. I would go with an HVAC contractor - an electrician might be able to determine the cause, but would not likely have the parts . The MOTOR24DD is the replacement motor for the Master Flow in. Direct Drive Whole House Fan (WHFS24M). Find great deals on eBay for Whole House Fan in Heating, Cooling and Air Conditioning Units and Parts.


    This projects is for an insulated (R30), automated (using MySensors of course) whole house fan. The purpose of the fan is to vent the hot air in your house . All QuietCool Trident Pro Line fans include our standard efficiency permanent split capacitor motors. These motors offer above-average efficiency with enormous value. Our QuietCool Trident Pro whole house fans operate on low wattage and low amperage. The Capacitor saved me at least $1in replacing the whole house attic fan.


    Effortless ordering and convenient delivery. Log-in or register for your pricing. Known as a “PSC” motor, this motor offers above -average efficiency with enormous value and performance. The bearings on the motor of the attic power vent over the main house (not the addition) finally failed. To cool the house, the attic fan must draw air through the windows of the house and outside through the attic.


    Replacing Bad Motor Emergency call. Many fan motors will run either way if you start them by hand. I suspect when you replace the capacitor the fan will start and run the correct rotation. If the motor starts by itself and runs the wrong rotation, you will .

    Sours: http://clearelectronicprojectbox.blogspot.com/2014/06/whole-house-fan-capacitor.html

    Capacitor whole house fan

    Online Users

    Quote
    testcase
    Another vote for a blown capacitor. If it has more than one capacitor (not unusual), be careful as the "good" capacitor would still be holding a charge and, be capable of zapping you. I would Google the specific model you have for a parts list / instruction manual. Have the specs that are on the motor plate handy when you Google.


    Reminded me of this:

    Ten Commandments of Electrical Safety

    (1) Beware of the lightning that lurks in an undischarged capacitor lest it cause thee to be bounced upon thy backside in a most ungainly manner.

    (2) Cause thou the switch that supplies large quantities of juice to be opened and thusly tagged, so thy days may be long on this earthly vale of tears.

    (3) Prove to thyself that all circuits that radiateth and upon which thou worketh are grounded lest they lift thee to high-frequency potential and cause thee to radiate also.

    (4) Take care thou useth the proper method when thou taketh the measure of high-voltage circuits so that thou doth not incinerate both thee and the meter, for verily though thou hast no account number and can be easily replaced, the meter doth have one and as a consequence bringeth much woe upon the supply department.

    (5)Tarry thee not amongst those who engage in intentional shocks for they are surely non-believers and are not long for this world.

    (6) Take care thou tampereth not with interlocks and safety devices, for this incureth the wrath of thy seniors and bringeth the fury of the safety officer down upon thy head and shoulders.

    (7) Work thee not on energized equipment, for if thou doeth, thy mates will surely be buying lunch without thee and thy space at the table will be filled by another.

    (8) Verily, verily I say unto thee, never service high-voltage equipment alone, for electric cooking is a slothful process, and thou might sizzle in thy own fat for hours on end before thy Maker sees fit to end thy misery and drag thee into His fold.

    (9) Trifle thee not with radioactive tubes and substances lest thou commence to glow in the dark like a lightning bug.

    (10) Commit thee to memory the works of the prophets, which are written in the instruction books, which giveth the straight info and which consoleth thee, and thou cannot make mistakes.

    -From Orbit, the Journal of the Rutherford High Energy Laboratory, Didcot, England (31 January 1965) p.12



    - Jack D.




    New tasteless sig coming soon!

    Options:  Reply • Quote

    Sours: https://forums.macresource.com/read.php?1,946287
    Replacing A Worn Out Attic Fan Motor With A New One In A Very Restricted Work Space

    It was evident that he had been waiting for this request for a long time. - Slavik will have a birthday in two weeks. So you will work out these photos with your ass.

    Similar news:

    By the active contractions of the walls of the vagina, even an inexperienced young man realized that a woman was on the verge. Of orgasm. Doubling his movements and caresses, he nevertheless brought her to relaxation.



    550 551 552 553 554