My less than 3 year old Payne central heat/air unit will not put out heat. It is 59 degrees in our house today, and we are freezing. No money to hire a repairman. Was wondering if there is anything I could do to check it out. Thanks

Linda, can you give me a model number of the indoor unit? Or can you tell me if the heating system used gas, oil or electricity?

Lets start by checking the furnace filter (if it has one). Replace or clean. Look for any blinking lights within the furnace cabinet. You may have to remove the front access panel of the furnace and then look for a small clear window in the lower right side of the furnace. It may be blinking. If it is, relay the number it blinks. There may be two different numbers (2 blinks than a pause followed by 5 blinks). Relay this info back to us ASAP.