JustAnswer > HVAC
Ask A Question|Register|Login|Help
JustAnswer

HVAC

Ask a HVAC Question, Get an Answer ASAP!

Have your own HVAC question?

HVAC Technicians are Online Now
characters left:
Not a HVAC Question?
Bookmark and Share

Question

i have a carrier 48ss heat/air unit, the fan wont quit blowing and the heater will only blow cold air the red led is flashing 8 times can you help with a diagnosis?

Submitted: 321 days and 8 hours ago.
Category: HVAC
Value: $9
Status: AWAITING CUSTOMER ACTION

Answer

Hi, If the fan is running all the time you have an open limit switch. Under the electrical box where the burners are look for a little switch with a button on top this is the roll-out switch. This is my first guess.

Picture
Expert: Robert
Pos. Feedback: 100.0 %
Accepts: 
Answered: 1/6/2009

HVACR Educator

Licensed Mechanical Contractor, 30 years experience, 20 years teaching experience

Related HVAC Questions

  • looking for a repair service for a Electrolux/Frigidaire win...
  • I have central heat and air, however no air is blowing out
  • describe why secondary return pipes are fitted on a large ho...
  • When the home a/c unit is in the heat mode and is activated
  • In our home is a furnes from kenmore. It work good,but very
  • I cannot get the temp to go down, it is on -10. I have foll...
  • Hi, I have an LG casette type airconditioner, Model LM-4460H...
  • I have a valiant combi 242 - it fires up no problem then abo...



Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.
Question List | Become an Expert | Terms of Service | Security & Privacy | About Us
© 2003-2009 JustAnswer Corp.