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From: Stormin Mormon on 24 Jan 2008 08:53
The smaller motor needs to spin, to do several things. Including blow the
carbon monoxide out the chimney. Call a repair company.
Christopher A. Young
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"Donna Ohl, Grady Volunteer Coordinator" <donna.ohl(a)sbcglobal.net> wrote in
Can you help me troubleshoot my Amana Air Command 80 gas-fired furnace?
2. I could see the "top" (smaller" motor wasn't spinning)
From: Donna Ohl, Grady Volunteer Coordinator on 24 Jan 2008 09:07
On Thu, 24 Jan 2008 06:09:55 -0800 (PST), ransley wrote:
> If you have AC look at the coil , clean it if its dirty, is blower
> cage dirty, is filter a restrictive type , try to get more air moving,
I do have air conditioning as part of this furnace setup.
I never did any maintenance on it (it's about seven or so years old).
I'd be glad to clean this AC coil; where would I find it?
Also, do you know of a good source on the web for furnace & ac maintenance
From: Vic Smith on 24 Jan 2008 10:55
On Thu, 24 Jan 2008 07:07:39 -0700, "Donna Ohl, Grady Volunteer
Coordinator" <donna.ohl(a)sbcglobal.net> wrote:
>On Thu, 24 Jan 2008 06:09:55 -0800 (PST), ransley wrote:
>> If you have AC look at the coil , clean it if its dirty, is blower
>> cage dirty, is filter a restrictive type , try to get more air moving,
>I do have air conditioning as part of this furnace setup.
>I never did any maintenance on it (it's about seven or so years old).
>I'd be glad to clean this AC coil; where would I find it?
>Also, do you know of a good source on the web for furnace & ac maintenance
If you're going to try to fix this, read the troubleshooting manual.
Though newer furnaces are a PITA compared to the older ones,
it's fairly easy to locate the problem.
You said before you sucked a hose and the switch for positive venting
You didn't say if the venting motor was even starting up.
You might get help from the HVAC guys, but you have to be clear on the
steps you're taking, and exactly what's happening at start-up.
Just make sure you don't try to bypass any of the start-up features.
From: Donna Ohl, Grady Volunteer Coordinator on 24 Jan 2008 10:49
On Thu, 24 Jan 2008 09:55:07 -0600, Vic Smith wrote:
> You said before you sucked a hose and the switch for positive venting
Yes. What is happening now is different than what at first happened.
FIRST (three blinking lights)
- The smaller motor (which, thanks to this newsgroup, I belatedly realize
is the combustion air venting motor) wasn't spinning - while the larger
motor (which by the process of elimination is the air circulation blower)
was constantly spinning. Perhaps the "limit" (which I take to be a sensor
that shuts things off when it senses something amiss) kicked in for the air
NOW (four blinking lights)
- I can get the furnace to work for an hour, two or three, but, eventually
the four blinking lights go on indicating one of the two "limits" have been
breached. The two motors (the smaller combustion venting motor and the
larger air circulation blower) remain running but the gas shuts off so the
flame goes out.
A service technician I called said it's 100 bucks to go out to see it so I
have him scheduled for Saturday (the earliest he could get here). Until
then, I want to learn what MAINTENANCE I could/should do.
Where can I get a PICTURE of the maintenance I should do until then?
From: Donna Ohl, Grady Volunteer Coordinator on 24 Jan 2008 12:14
On Thu, 24 Jan 2008 07:18:07 -0500, Shawn Hirn wrote:
> Call a professional heating
> and repair person to fix the problem.
I did. He'll be out here on Saturday. Isn't there ANY maintenance a
homeowner can do themselves?
I'm sure, from the symptoms, that the "limits" kicked in, probably due to
some problem with air circulation.
Besides the filter (which was very dirty but I replaced it yesterday), what
other maintenance can I do.
For example, someone said clean the A/C coils ... but WHERE ARE THEY?
The furnace is in a tiny closet. The AC fan is outside the house.