MIL calls says her furnace is out. I guess it must be catching.
Anyway, I go out there and the controller trouble light is blinking 4
times: open high limit switch.
This furnace has two limit switches, one in the plenum where the
burner tubes are, and one up on the blower housing. A tripp
> Can an electric motor...overheat and not be obviously hard to turn?
Yes, if there is a shorted winding.
-- Jim
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What would cause a shorted winding? Do they "just happen" sometimes?
On Jan 6, 2008, at 9:10 PM, Jim Cathey wrote:
>> Can an electric motor...overheat and not be obviously hard to turn?
>
> Yes, if there is a shorted winding.
>
> -- Jim
>
>
> ___
> http://www
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From: Allan Streib <[EMAIL PROTECTED]>
To: Mercedes Discussion List
Sent: Sun, 6 Jan 2008 7:20 pm
Subject: Re: [MBZ] OT: more furnace woes
What would cause a shorted winding? Do they "just happen" sometimes?
On Jan 6, 2008, at 9:10 PM, Jim Cathey wrote:
>> Can an electri
Hey Mr. Jim...was the Tim that was on earlier today related to you?
Bob R
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of [EMAIL PROTECTED]
Sent: Sunday, January 06, 2008 7:43 PM
To: mercedes@okiebenz.com
Subject: Re: [MBZ] OT: more furnace woes
Allan
> What would cause a shorted winding? Do they "just happen" sometimes?
Heat, usually. If the motor has a starting winding and
the starting switch fails it can cook it quickly. And,
as has been pointed out, if it's a capacitor motor (-run
and/or -start) the capacitor(s) are certainly potential
c
The motor is 120V, it has multiple leads but these are for achieving
different speeds. Indeed it does have an external starting capacitor.
Of course I forgot to grab it when I left.
Presumably the shop would have a suitable capacitor lying around, but
that would only verify that the motor is OK -
Well none of the electrical supply stores here will give me the time
of day because I'm not in the electrical or HVAC trade.
Guess it's internet time...
Allan
Jim Cathey <[EMAIL PROTECTED]> writes:
>> What would cause a shorted winding? Do they "just happen" sometimes?
>
> Heat, usually. If t
Allan Streib wrote:
> Well none of the electrical supply stores here will give me the time
> of day because I'm not in the electrical or HVAC trade.
>
> Guess it's internet time...
www.hvac-talk.com
FWIW, the **HATE** DIY folks, but you can probably search and piece
together enough info to help
Grainger.com seems to have a lot of electrical motors...
John Robbins <[EMAIL PROTECTED]> writes:
> Allan Streib wrote:
>> Well none of the electrical supply stores here will give me the time
>> of day because I'm not in the electrical or HVAC trade.
>>
>> Guess it's internet time...
>
> www.hva
In a message dated 1/7/2008 1:10:56 P.M. US Mountain Standard Time,
[EMAIL PROTECTED] writes:
Well none of the electrical supply stores here will give me the time
of day because I'm not in the electrical or HVAC trade.
Graingers and Johnstone are two wholesalers that will take your cash,
I was hopeful about Graingers, but their nearest outlet is 50 miles
away. Went to their web site and found the motor but in the process
of checking out I found out that they don't want to do consumer sales
either. So I'd have to fake being a business, which would almost
certainly work but
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