Furnace help

[Xmoonstompx]

So my grandma called me this morning saying her furnace was making a noise. Drive down and find the "inducer fan" loose and it was all chewed up. So tracked one down got it replaced and noticed it has a error code/check furnace sytem thing. I'm getting 3 blinking lights which comes up with limit circuit lockout or limit circuit fault. One of the things it says to check was the inducer fan being loose.
Is there a reset or anything like that? I'm by no means a appliace repair man and am just going off the sticker on the unit.
Any ideas would be appreciated!!

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[RAYJAY]

http://www.searspartsdirect.com/partsdirect/user-manuals/58STA09010016-Carrier-FURNACE-manual

last install guide is for your model number make sure it matches the 58st
might help

 

[zmaxmotorsports]

What are the actual symptoms?

 

[txst]

Look above the burners or to the side. There is a thermal switch that is usually a manual reset - you press a button on the back side of the switch in the center, between the wire connections. You should hear a click when you press the reset button. That probably tripped when the inducer fan failed. It's purpose is to make sure the flames from the burners get sucked into the heat exchanger.

Also check the thermal switch at the bottom of the elbow to the right of the inducer motor - it may need to be reset as well.

 

[RAYJAY]

What are the actual symptoms?

getting 3 blinking lights which comes up with limit circuit lockout or limit circuit fault. One of the things it says to check was the inducer fan being loose.

 

[zmaxmotorsports]

I was looking at the fault codes on his sheet he posted a picture of,All I saw was a 13/23/33.
I normally just go by what the furnace is doing to trouble shoot things,need a few details about what its actually doing is all.
Who ever did the furnace install should be beaten in the nuts with his own tools.

 

[Xmoonstompx]

What are the actual symptoms?

As it sits now, the fan will turn on for about 3-4 min and then stop. Then the code will flash.

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[Xmoonstompx]

Look above the burners or to the side. There is a thermal switch that is usually a manual reset - you press a button on the back side of the switch in the center, between the wire connections. You should hear a click when you press the reset button. That probably tripped when the inducer fan failed. It's purpose is to make sure the flames from the burners get sucked into the heat exchanger.

Also check the thermal switch at the bottom of the elbow to the right of the inducer motor - it may need to be reset as well.

Will do thanks!

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[Xmoonstompx]

Well tried the switches, pushed them in but no click or real movment so I assume they didn't trip. I snapped some pics of the switches I found and took a quick video of what it's doing.

. I'll upload that when get home.

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[brewchief]

Do you have a meter that will measure 24v ac?

 

[dogdog]

the pic of the switch you posted seems to be one of the LS1 or LS2 (automatic reset normally closed) but Not FRS1 or FRS2 (manual reset)

If that is the manual the model posted by rayjay on page 33/48 that all those safety switches are normally closed and connected in series probably at different places in the furnace for safety.... on the pin 6 and pin 8 (red wire) they should have continuity if you check the connector between pin 6 and 8. if not then follow the wire and go through each switch and check continuity?

 

[bjcouche]

Is the burner lighting and then going out after a couple minutes or is the draft fan running for a couple minutes but the burner doesn't light? I didn't look through your manual, but generally speaking, if the "intelligent" electronics are complaining (faulting) saying the draft fan is not working, and you know that it is.... The first thing I would ask myself is, wheel how does it sense a draft fan not working.. On many furnaces there's a vacuum or pressure activated switch. The airflow could be blocked or the pressure switch blocked and the electronics will interpret both of these issues incorrectly as a problem with the draft fan. Had this happen to me when mine sucked in a couple leaves into the intake.

Brian