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have a code 33 on carrier infinity system, says limit circut

and high heat is active,,...
have a code 33 on carrier infinity system, says limit circut and high heat is active,,, how do I fix
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Answered in 2 minutes by:
11/4/2009
Mark Henley
Mark Henley, Journeyman Technician
Category: HVAC
Satisfied Customers: 3,217
Experience: UA Journeyman Pipefitter , HVAC, Refrigeration, DDC controls. 26 years.Commercial & residential
Verified

Hi,

 

You can look for a device like the one in the photo and reset it, these are located on the burner rack, let me know, other than that it will be the high limit switch which does not have a reset.

 

graphic

 

Thanks

 

Mark

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Customer reply replied 8 years ago

Ive reset the limit switch.. didnt seem to be popped,,, and it does it within 2 hrs of running,,,,,,the system is new just put in about 3 weeks ago..... where is the high temp one located............ your pic didnt come thru.... my email is [email protected]

 

thanks..

graphic

 

There is a picture of a high limit switch it inserts into the heat exchanger, but if the furnace runs on a startup and then shuts off on high limit then it won't be the other one I posted, it will be this one. These are suppose to reset when they cool down, does that happen ?

 

If you can't see th pictures tr to get to this web page,

 

http://www.justanswer.com/questions/2qje8-code-33-carrier-infinity-system

 

Thanks

 

Mark

 

 

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Customer reply replied 8 years ago
well if we take the door off where the switch on the door it resets,,,,but it shouldnt be bringing up a code every two hours??? is this sensor bad?

Hi

 

It is either overheating or its defective, more than likely its defective.

 

Thanks

 

Mark

Mark Henley
Mark Henley, Journeyman Technician
Category: HVAC
Satisfied Customers: 3,217
Experience: UA Journeyman Pipefitter , HVAC, Refrigeration, DDC controls. 26 years.Commercial & residential
Verified
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Mark Henley
Mark Henley
Mark Henley, Journeyman Technician
Category: HVAC
Satisfied Customers: 3,217
3,217 Satisfied Customers
Experience: UA Journeyman Pipefitter , HVAC, Refrigeration, DDC controls. 26 years.Commercial & residential

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