The Gas furnace is running however there is no heat coming out from the furnace directly and the blower is not coming on. The heat is set to 68 however it is 64. There is no blockage in the vents. Why is this happening. We just had an ice storm but it seems like whenever it gets very cold outside the furnace does not work. Thank you

Circuit board, fan relay, blower motor, run capacitor just to name a few.

Thanks for the information. I will try that. All though I will say we had a service man come out yesterday and he still could not fix it. He is re-trying today. The furnace is only 10 years old had it replaced in 97. Could it be the gas pressure?

You said the burners run but not the fan, so gas pressure is not likely the culprit