Re: [DIY] Help me troubleshoot gas furnace

 

For several reasons:
(1) The more inaccessible something is, the more likely it is to be forgotten and ignored.
(2) The harder it is to service the more it will cost to repair and or replace.
(3) Crawl spaces and attics are noted for dust, spiders, and other accumulations that are either corrosive or flammable.
(4)  Central AC is usually installed as a part of the furnace and they usually eventually leak condensate which will either
      ruin a ceiling or cause mud, rust, and corrosion in a crawl space as well as mold, or rot and encourage termite infestations.
I have never seen either that was not a source of eventual trouble, and I was in the service business for nearly 20 years.

Flat_Land Dale

Classic Girl jdocrc@yahoo.com [DoIt_Yourself] wrote:

 

Dale- why never put furnace in crawlspace or attic?

Thanks,

Judy

On Sunday, February 19, 2017 8:38 PM, "Dale Schoepflin dalu@hbcomm.net [DoIt_Yourself]" <DoIt_Yourself@yahoogroups.com> wrote:

 

One More:  Never put the furnace in the attic or in the crawl space under the house.

Flat_Land Dale

bigmikechen@yahoo.com [DoIt_Yourself] wrote:

 

Hi there,

I have a Carrier model furnace in the attic circa 2001. About a week ago, it stopped working. (Fortunately in California, the nights only dip down to the mid-low 60s, so it's more of an annoyance than a necessity.)

Here is the info I gathered:

1) The water heater and oven still work fine.
2) The thermostat still appears to be working. The fan controls work (on/off) and the AC works.
3) When I set it to heater, the thermostat indicates its own. But you don't hear the typical noise from the ducts and no hot air blows out.

I haven't gone up in the attic yet, as we have somethings in the closet that will require moving in order to get a ladder to the access panel. So I want to gather all info and see what else I need to do first.

I've read that it could be:

1) The ignitor needs to be replaced, nice and simple
2) Faulty wiring on the board
3) Dirty filter needs to be cleaned
4) A limit switch was tripped and got stuck, so the system needs a hard boot (flip the breaker)

Any other ideas before I venture up there?

Thanks!

Mike

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Posted by: Dale Schoepflin <dalu@hbcomm.net>

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