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Old 03-26-2011, 10:00 AM   #16
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American Standard Freedom 90 Question


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Originally Posted by chefpattyo View Post
I hav a American Standard Freedom 90 single stage and it just started tripping out when it calls for heat but I dont see any light codes.Tonight It started and I noticed it was running but blowing ice cold air.I just had the tanks filled this week .Could this also be the sensor your talking about that I need to clean and where is it located?


Patty
The flame sensor is in the burner compartment this picture is sideways. The flame sensor looks like this.

the flash code is located here.

BTW.... Trane and American Standard are the same
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Old 03-26-2011, 02:22 PM   #17
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American Standard Freedom 90 Question


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Originally Posted by chefpattyo
I hav a American Standard Freedom 90 single stage and it just started tripping out when it calls for heat but I dont see any light codes.Tonight It started and I noticed it was running but blowing ice cold air.I just had the tanks filled this week .Could this also be the sensor your talking about that I need to clean and where is it located?

Patty
Sounds like it's tripping a safety switch, chk your filter if it's really dirty it could trip the hi limit. If it tripped a rollout switch near the burners call a professional out you may be having problems with proper draft
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Old 03-28-2011, 06:31 PM   #18
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American Standard Freedom 90 Question


@Ducthunter It does this one out of 4 times it calls for heat .I can hear the furnace kick on with gas and then go out.It will retry a few more times then start to blow heat.All filter are clean and unit is vacuumed out.Its very clean.
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Old 03-28-2011, 06:48 PM   #19
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American Standard Freedom 90 Question


did you clean the flame sensor?!
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Old 03-29-2011, 05:35 PM   #20
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American Standard Freedom 90 Question


I know the original post was a long time ago, but it's still a relatively easy fix if you are at all gas furnace savvy. The flame sensor should be cleaned annually, as well as the crossover ports on the burner assembly. If the flame doesn't make it to the end burner the flame sensor will do it's job and shut the valve down.
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Old 01-03-2013, 11:06 AM   #21
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American Standard Freedom 90 Question


I have a 1993 Freedom 90 that will not light and is giving me a 4- flash code Thermo protection open. Any idea how to repair that?
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Old 01-03-2013, 06:08 PM   #22
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American Standard Freedom 90 Question


Is or was the air filer dirty. may need a new limit.
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