BLOWER IS RUNNING BUT NO HEAT, THERMOSTATE APPEARS TO BE WORKINGPost created: 2013-03-09 Type of Equipment: Furnace Views: 146
This question was created on the page: https://www.furnacecompare.com/furnaces/tappan/fg6tc.html.
Installed equipment 6/6/05. Checked thermostate and changed batteries and appears to be working ok, but blower is running and heat continues to drop. There is no pilot to light. Cannot find my manual, so have no clue where to begin.
On 2013-03-09 JB wrote:
I'm not as familiar with this brand of furnace, but after reading a summary on this site they seem like a quality product. This furnace has an electronic ignitor for lighting the burners so there isn't really a pilot light that can be lit manually.
One question I have is if the ignitor heats up (glows) but there is no gas feed to be ignited? If this is true, or even if it isn't, there should be an LED display or a set of lights on the main board of the furnace that indicates by a series of flashing lights an error code. This code gives an indication of the source of the problem.
So it seems that there is an issue with the furnace where a safety feature is preventing it from igniting. If you see an error code it will tell you the nature of the problem. There may be a guide pasted to the inside of the furnace to help you read the codes or they should be listed in the owner's manual.
Possible issues could be a pressure switch or even a dirty filter that is preventing proper airflow through the furnace. It could also maybe be dirty blowers or something of that nature.
You can try looking at the filters to see if they are excessively dirty, but you will probably need to call in a certified HVAC tech.
To keep legal happy, let me just say that I am not an HVAC contractor, and you should never even look at your furnace without having a qualified, liability accepting HVAC contractor present. To keep sales happy, let me just say that you can find an HVAC contractor that's happy to take your money here: http://www.furnacecompare.com/perl/find_contractors.pl.