furnace problem

I keep my thermostat set at 64 degrees. When I woke up this morning, the house was 59 degrees inside. I left for a little bit and came back to see the house was now 58 degrees inside. I bumped the t-stat up to 70. About 15 minutes later, the furnace clicked on and got the house up to 62 degrees before shutting off again. It is now 60 degrees in the house and the furnace has not came back on. It has been about 30 minutes since it shut off. What could be the problem?
Thanks
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
The tech was here for two hrs and came up with bad limit switch and didn't get the whole story since I had to leave. The story I get is that he recommends getting a new furnace if it stops again since parts are now obsolete. I didn't know Amana quit making furnaces.
Dan

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
He jumpered the limit swith to get the unit going. Is that why the fan stays on all the time? I also had to reset the breaker to bring the burners on. Is Goodman a good one?

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
He should be able to get a generic limit switch to work if Amana no longer carries that part. Be careful, some service techs are on commission to sell, so they make more money if you buy a new furnace instead of fixing the old one. Call someone who is a dealer for Amana. Some parts HAVE to be amana though. You may want to get a second opinion though.
Stretch
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
You are right...found a dealer in Baltimore who said, he can get most parts and they even take the one limit switch apart and pop rivet the new part to the board. It was good talking to someone who has knowledge. Let you know what happens.
Dan

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
I would not trust a pro that say he cant find parts and you need a new unit. Goodman is the bottom of the barrel. Feb Consumer Reports dd a 6 yr study on repairs Goodman was last by a large margin.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Trouble could be in any of 1. furnace (if inefficient). When was it last serviced? 2. heat diffusion components (air vents, radiators, etc., if turned off, blocked, dirty etc.) 3. thermostat (on furnace) 4. control system upstairs (battery etc.)
--
Don Phillipson
Carlsbad Springs
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

How does an inefficient furnace explain that when he set the thermostat higher the furnace, which was not previously running, came on and brought the temp up 4 degrees?

Same as above.

Sure sounds like the place to start. If it's a mercury one, just having it out of level or clogged with dirt would produce the problem.

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
snipped-for-privacy@aol.com wrote:

sounds like your thermostat. do you have a meter? you can confirm this yourself
nate
--
replace "roosters" with "cox" to reply.
http://members.cox.net/njnagel
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Dec 13, 10:38am, snipped-for-privacy@aol.com wrote:

You have to start eliminating the possible problems. You can bypass the T-stat and see if it comes on, or jump it out at the furnace and see if it comes on. If it still doesn't, you have to check power, limit switches. Is it gas or oil? Does it fire up at all without the fan coming on?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
snipped-for-privacy@aol.com wrote:

What kind 'stat? old analog type or digital? Does it have batteries? If you jump R and W terminal furnace should come on to heat. If it is old mercury bulb type stat maybe it has tarnished contacts or loose connection causing to behave like that. Time for a programmable digital one. Easy to swap out.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
snipped-for-privacy@aol.com wrote:

Sounds like it's 10 degrees off calibration. I would be more concerned as to why it took 15 minutes to come on after raising it. That sounds like a furnace problem if the thermostat contacts are are good. Also check the wire connections on both ends of the stat.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
Claude Hopper wrote:

It could be as simple as plugged up filter triggering limit switch which needs cooling down. Wonder when OP'er replaced filter?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
On Dec 13, 9:38am, snipped-for-privacy@aol.com wrote:

Could be a cockroach in the thermostat, could be, could be a
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
ransley wrote:

More likely a black widow spider. Cockroaches tend to hang out where there's food but a thermostat housing would make an ideal nesting site for a black widow.
--

I may not understand what you say, but I will defend to your death my
right to deny it.
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Actualy an apt building I know had thermostat problems, it had about 30 in the thermostat, they are safe and like the heat from the clock or whatever, did you ever see over 110 roaches in a 2 week old answering machine, dont ask.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
ransley wrote:

Damn... maybe that's why Dialing for Dollars never got thru.
--

I may not understand what you say, but I will defend to your death my
right to deny it.
  Click to see the full signature.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
ransley wrote:

One of the TV repair shops I worked in many years ago had a policy of taking every TV from the wrong side of the tracks outside to the loading dock to fumigate it before bringing in for repair. We would vacuum out piles of critters from those damn things.
TDD
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.