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RVK fan noise fix.

RVK fan noise boobs fartybits

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#11 2scoops

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Posted 11 October 2018 - 06:37 PM

I need a new fan or thought i did. I reckon i could do this job myself as well i probably won`t though what having idle-eye-tuss, but ya never know, cus it sure saves the pennies. Nice one BBB.


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#12 Horse Badorties

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Posted 11 October 2018 - 08:02 PM

You are now an official Fan Man, Billy... welcome to the club :lol:

 

I hate thoes fooking circlips, they are in every cheap fan I have... which is all of 'em :angry:


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#13 bigbadbillybob

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Posted 11 October 2018 - 09:53 PM

I need a new fan or thought i did. I reckon i could do this job myself as well i probably won`t though what having idle-eye-tuss, but ya never know, cus it sure saves the pennies. Nice one BBB.

its much cheaper than a new fan Jimmy.

You know me, I like to keep an eye on the pennies and live up to my Scottish-ness.

 

if you had the bearings, and the tools,  I reckon you could turn this around in an hour, no problem


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#14 bigbadbillybob

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Posted 11 October 2018 - 09:56 PM

You are now an official Fan Man, Billy... welcome to the club :lol:

 

I hate thoes fooking circlips, they are in every cheap fan I have... which is all of 'em :angry:

 

No, no Horse- you the (fan) man.....

I wondered where your username came from.

Another mystery solved.


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#15 2scoops

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Posted 12 October 2018 - 12:05 PM

its much cheaper than a new fan Jimmy.

You know me, I like to keep an eye on the pennies and live up to my Scottish-ness.

 

if you had the bearings, and the tools,  I reckon you could turn this around in an hour, no problem

I`m unsure if it`s a 5incvh vk or rvk, if i do get myself oputa reverse i`ll check it out to be sure. Cheers mucka. :)


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#16 The Clone Ranger

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Posted 13 October 2018 - 08:43 AM

great wee thread BBB have you got any knowledge on low speed buzzing noise coming from the fan?? 

 

got myself a fan speed controller (cheapo of course) and kids turned round to me and said daddy why is there a buzzing noise?? i just turned around and said it must be next door doing alot of hoovering..  :lol:  but dead of night you can hear it around the house

 

 


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#17 Anonymiss

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Posted 13 October 2018 - 11:20 AM

The buzzing is caused by the controller, @The Clone Ranger

The cheaper ones work in the same way as dimmer switches - they interrupt the AC waveform on every cycle, like this:

post-7-0-66689500-1539429472.png

The red line shows the output, which switches on where that line is vertical and then switches off when the Voltage reaches 0, only to be repeated on the next cycle.

It's those hard switch-ons that cause the noise because they give the fan rotor a "kick" 50 times per second.

Attached Files


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#18 The Clone Ranger

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Posted 13 October 2018 - 11:45 AM

thanks anonymiss great bit of info there.. :nice:

 

think a diy acoustic box is in order for the next grow.. had one last time when i was in my en-suite, but only had 4inch rhino pro rvk kit, and a dehumidifier..  so didnt really need the acoustic box 

 

tanks again TCR


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#19 bigbadbillybob

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Posted 13 October 2018 - 11:49 AM

build yourself a variac controller, they dont buzz or hum. you could build a basic one for about 80 quid


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#20 The Clone Ranger

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Posted 13 October 2018 - 11:56 AM

how much to buy a half decent one what i could just plug into the wall??

 

me and electrics is not a good idea, i usually break things, replacing RVK bearings seems about my limit lol, i cant take things apart and put them back together but to actually build something electronically, f*@k that hahaha 


Edited by The Clone Ranger, 13 October 2018 - 11:59 AM.

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