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| Re: [GMCnet] original fan question [message #82265 is a reply to message #82255] |
Wed, 28 April 2010 11:33   |
idrob
Messages: 645
Registered: January 2005
Location: Central Idaho
Karma: 0
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Senior Member |
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| Richard Lister wrote on Wed, 28 April 2010 08:37 |
Hi all. I've replaced one with a Fantastic Fan (and it is fantastic...), but want to keep an original one in the bathroom (I like it). It had two speeds but now it only has the fast speed, so I need to replace the whatever-you-call-it on the switch. I think its a relay...? Could someone less electrically challenged than me interrupt at this point...?
Cheers
Richard, DC
'78 Kingsley
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Contact Fantastic, they will fix you up for free. Their policy.
Oops, you are talking about an original fan, not a fantastic? Sorry.
Rob Allen
former owner of '76 x-PB
[Updated on: Wed, 28 April 2010 11:35] Report message to a moderator |
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| Re: [GMCnet] original fan question [message #82287 is a reply to message #82286] |
Wed, 28 April 2010 13:59 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
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And, it MIGHT be possible to remove that wirewound
resistor and check the resistance over the whole
thing or on each side of a break in the resistance
wire to determine the original value.
Best thing of course, would be for somebody who
has an intact unit to measure the resistance.
My coach is away from my home, but if nobody else
can get to theirs, I have the test equipment to
check mine out. I do know that the fan in my
recently acquired coach does run on both high
and low settings.
* Mac Macdonald *
* Oklahoma City *
** "Money Pit" **
* '76 ex - P.B. *
----------------------------------------
From: emerystora@mac.com
To: gmclist@temp.gmcnet.org
Date: Wed, 28 Apr 2010 12:24:17 -0600
Subject: Re: [GMCnet] original fan question
That is a common wire wound resistor. Don't use a composite resistor
as it won't stand the current and heat.
Someone here that still has the original fan can measure it and give
you the resistance.
Emery Stora
77 Kingsley
Santa Fe, NM
__________
On Apr 28, 2010, at 12:22 PM, Richard Lister wrote:
The resistor/relay whatever it is, looks like a fuse with a wire
coiled along its length - no visible markings. Just to emphasise
this is an ORIGINAL fan I am talking about - not a Fantastic...
Cheers
Richard, DC
'78 Kingsley
http://www.thegmcproject.blogspot.com
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| Re: [GMCnet] original fan question [message #82374 is a reply to message #82287] |
Wed, 28 April 2010 22:15 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
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Senior Member |
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Well, I made the trip to the coach this evening. What I have
is very different from what Richard has.
I have the itsy-bitsy noise-maker fan in BOTH vents. However,
there is a Max-Air hood with three-speed reversible fan installed
over the vent in the front of the coach.
Ergo, no comparison. Sorry!
I did notice that the Max-Air Power Vent has wire-wound dropping
resistors mounted free and in the airstream of the fan. Slick!
* Mac Macdonald *
* Oklahoma City *
** "Money Pit" **
* '76 ex - P.B. *
From: k2gkk@hotmail.com
To: gmclist@temp.gmcnet.org
Date: Wed, 28 Apr 2010 13:59:25 -0500
Subject: Re: [GMCnet] original fan question
And, it MIGHT be possible to remove that wirewound
resistor and check the resistance over the whole
thing or on each side of a break in the resistance
wire to determine the original value.
Best thing of course, would be for somebody who
has an intact unit to measure the resistance.
My coach is away from my home, but if nobody else
can get to theirs, I have the test equipment to
check mine out. I do know that the fan in my
recently acquired coach does run on both high
and low settings.
* Mac Macdonald *
* Oklahoma City *
** "Money Pit" **
* '76 ex - P.B. *
----------------------------------------
From: emerystora@mac.com
To: gmclist@temp.gmcnet.org
Date: Wed, 28 Apr 2010 12:24:17 -0600
Subject: Re: [GMCnet] original fan question
That is a common wire wound resistor. Don't use a composite resistor
as it won't stand the current and heat.
Someone here that still has the original fan can measure it and give
you the resistance.
Emery Stora
77 Kingsley
Santa Fe, NM
__________
On Apr 28, 2010, at 12:22 PM, Richard Lister wrote:
The resistor/relay whatever it is, looks like a fuse with a wire
coiled along its length - no visible markings. Just to emphasise
this is an ORIGINAL fan I am talking about - not a Fantastic...
Cheers
Richard, DC
'78 Kingsley
http://www.thegmcproject.blogspot.com
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| Re: [GMCnet] original fan question [message #82498 is a reply to message #82305] |
Thu, 29 April 2010 20:50 |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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Senior Member |
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Why don't you measure the resistance of it by connecting your ohm meter at the 2 ends, if it isn't burnt out it should measure I would guess less then 100 ohms. If that is the case it's probably the switch that is bad and you can solder the old resistor to your new switch. When wire wound resistors go bad there is usually a brake in the wire.
Roy
Roy Keen
Minden,NV
76 X Glenbrook
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| Re: [GMCnet] original fan question [message #84277 is a reply to message #82255] |
Wed, 12 May 2010 20:35 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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I've found an old fan frame, but w/o the switch assembly. Darn my coach is not here. Bascily the resistor is in series with the fan motor in one position and full 12v goes to the fan in the other position. You can taylor the low speed noise by changing that resistor value within reason. The wattage needs to be same or a little greater, the fan breeze helps cool it also. My total out of the blue guess is 10 Ohms for resistance value. We shall see.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] original fan question [message #84280 is a reply to message #84277] |
Wed, 12 May 2010 20:45 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
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Senior Member |
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Do you know or can you measure the current draw for
the fan at 12-13 Volts?
Let me know and I'll calculate resistance and wattage
for several possibilities of dropping resistors.
* Mac Macdonald *
* Oklahoma City *
** "Money Pit" **
* '76 ex - P.B. *
----------------------------------------
> To: gmclist@temp.gmcnet.org
> From: gransport@aol.com
> Date: Wed, 12 May 2010 20:35:13 -0500
> Subject: Re: [GMCnet] original fan question
>
>
>
> I've found an old fan frame, but w/o the switch assembly. Darn my coach is not here. Bascily the resistor is in series with the fan motor in one position and full 12v goes to the fan in the other position. You can taylor the low speed noise by changing that resistor value within reason. The wattage needs to be same or a little greater, the fan breeze helps cool it also. My total out of the blue guess is 10 Ohms for resistance value. We shall see.
> --
> John Lebetski
> Chicago, IL
> 77 Eleganza II
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