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Question

i have a carrier 25hbr unit. we had the heat on and now the words heat & on are flashing and no heat is coming out . if heat does come out it only works for 10 mins at the most

Submitted: 251 days and 21 hours ago.
Category: HVAC
Value: $9
Status: AWAITING CUSTOMER ACTION
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Answer

Are you failure with using an electrical multimeter?

 

The reason I ask is because you can diagnose whether or not your safeties have opened.

 

Since your furnace does come on for 10 minutes, I believe your problem may be your high temperature limit. I have included a picture of what it looks like.

 

Another thing to consider is why your limit could be opening. This could be because of a bad switch, a dirty filter, or from the indoor fan not coming on.

 

The picture of the switch that I have posted is not a carrier product, so yours may look a little different.

 

The good thing about a Carrier is that they usually have an LED light that blinks to indicate a failure. The failure code is typically printed on the inside of one of your units panels.

 

Please respond with what you would like to do and I will see it through to the end for you.

 

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Expert: Kenton Guidry
Pos. Feedback: 98.8 %
Accepts: 
Answered: 3/17/2009

HVAC Technician

EPA issued refrigeration license, College certificate, and 7 years in field.

Posted by Kenton Guidry 251 days and 19 hours ago.

Info Request

XXXXXXXXX I would like to help you. Please respond with how you would like to proceed.

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