Electrical Wiring in the Home/ceiling fan with light

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Question
Hi, I have wired this new ceiling fan correctly. This is the second one, same brand.  When I turn on the fan with the light on, it makes a slight humming noise,(all three speeds).  If I turn off the light, (fan still running), the unit makes a loud buzzing noise.  Wiring is black to black and blue. White to white. No ground. There is a old dimmer switch for the ceiling light.  I will change the dimmer switch tomorrow.  This house was built in 1950, very few circuits with screw in fuses. My question is this, 1. Do you think the dimmer switch is the cause of the buzzing? 2. If the white wire is not the neutral, (say the black is neutral) would wiring the fan this way cause this noise. I will check the fuse box and see if the black is neutral. I seriously doubt it is.  The first fan I put in a mobile home. It works fine, very smooth no noise.

Answer
Remove dimmer,     that should shut the light off,    then  kill power and tie the light switch together,  that should turn the light on like a normal switch,    Impossible to say what is what, without seeing, it, but my guess is the dimmer is the cause of the humming,   but there are two sounds correct?   Humming and buzzing?   One step at a time  first removing the dimmer,  the dimmer should never be on the fan,    a dimmer might induce into the fan,   but should be a separate circuit,   

Then verify what each wire is,     as per your plan,       but don't simply change out the dimmer,   use the wires as the test without a switch in the mix,   to avoid confusion,   use the dimmer wires as an off/on switch,   

That will tell you a lot right there,     then we go step by step to resolve the remaining issues,  
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Electrical Wiring in the Home

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Will Babbitt

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Electrical issues of all types, wiring, control, appliances, components, specialty in Electric MOTOR or APPARATUS trouble shooting, electric motors, electrical problems, single phase, three phase, DC, capacitors, elevator MG-Sets, modifications, reverse engineering, VFD Drives, single to three phase convertors. Repair of most any electrical/mechanical/electronic apparatus, OEM, AC, DC, Industrial Applications, Three phase, single phase failure mode, determining the root cause of the equipment failure BEFORE failure repeats, Antique appliances, electric motors, fans, ceiling fans, base mount fans, poor equipment performance, Modifications, habitual failures, vibration, redesign, obsolete issues, collectible items restored, rewinding. Owner of EMR Repair Inc www.emrrepair.com More information on electric motors, under Engineering/Motors Ask about any electrical or mechanical problems in the home, office, or even at your work. B2B or business to business CONSULTING I can do but it would be a much more complex issue, that would require a significant amount of time. repair@mearservice.com from there we can discuss and begin work on about anything. Industrial electric motors, controls, troubleshooting, vibration, alignment, any type of industrial or commercial electric/electrcical equipment For the home owner, renter, apartment if you have odd things going on, describe to me, photos are normally very helpful, appliances, heating and air conditioning issues, light switches, installation, DIY PROJECTS FOR THOSE NOT EDUCATED IN ELECTRICAL, we can do some things, but for safety and sanity reasons, I may refer you to a local electrician, and help you find one, help you with pricing and even speak directly with anyone you hire if you have issues,

Experience

Over thirty years with a major repair and sales company, VP of Operations, and former owner of my own specialty repair shops, MEAR Services local to Kansas City Missouri EMR Repair Inc., located in Kansas City Missouri, 2014 sold both businesses to JCI Industries, Lee's Summit Missouri wbabbitt@jciind.com Evaluation and repair of electrical/mechanical apparatus. Electrical and mechanical repairs, trouble shooting including, vibration and balance issues. About.com provides this service, and the huge costs to provide help on about any subject. They provide the servers, the people to vet the experts, costs that would be the same as operating a good sized business, They should be appreciated for what they do, the huge costs and the great help they provide for free, Electric motor questions, can be answered here but there is a dedicated category that has other experts to help and add to a solution. Other common questions, are noises in the walls, breakers tripping, devices not starting or shutting down for no apparent reason, smoke alarms buzzing, thermostat change outs, or sizing wire or needing information for a new project, but anything can be resolved, anything, with enough effort and patience, DIY, with electrical is possible, but in most cases the use of a simple ohm meter or volt meter is needed, they can be purchased at any hardware store for a few bucks. If you have smoke, or smell smoke, don't be writing me, call 911 the Fire Department has no problem looking for smoke smells, better then spraying water on a blazing fire. DO NOT GET CAUGHT INVESTIGATING AND TRAPPED IN A BASEMENT LOOKING FOR A BLOWER FAILING< As to the tip jar, it is up to you, it is appreciated, every expert spends out of pocket that I know, we spend on IP time, computer wear, printing documents, books, and of course our time, but if we prevent a $400 service call, we did well,

Organizations
Former IBEW, EASA, IEEE, UL, ..............

Publications
SEE ELECTRIC MOTOR CATEGORY

Education/Credentials
10 plus years, various Technical Schools, followed by Industrial College Credit and non Credit Courses, electronics courses, experience in most any electrical apparatus, electric motors and generators, AC OR DC, fractional to above 5000HP, other electrical apparatus, slip rings, sleeve [plain] bearings, lubrication, identification-no data plate, control components, service and sales. I have continued night schools for decades, the list is extensive. I have been in the business of repairing most anything with wires or mechanical parts for decades, I have some helpful hints and directions you won't have to dig up. Or hopefully not have to pay a huge service call invoice to find.

Awards and Honors
Yes

Past/Present Clients
Federal Government, National Weather Service, NOAA, Commercial Power Plants, Major Vehicle Manufacturers, Printers, Other industrial and Commercial Businesses

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