I have 1999 Honda Accord LX V6. The AC and heat quit working several weeks ago and I cannot figure out what is going on. The vents blow warm air, but the heat and air do not work...the green light under AC and the orange light under defrost will not come on. All other electrical components (radio, clock, cig lighter) are all still working. Anyone have any ideas?

Thanks so much!

 

Check fuse if any?

 

I looked at the fuse and it was okay. Any other ideas?

 

After not working for nearly two weeks, the AC and Heat started working today for no apparent reason. Anyone have any idea what is going on?

 

The circuit board is going out? A guess, do nothing on a guess: http://www.hondaaccordforum.com/foru...g-50944/page3/

There are HVAC codes you can get from the unit. Two different types in this gen - auto vs manual controls. Or another way of asking, is there a **** you turn from hot to cold or is there a temp setting you set (like your house HVAC).