BLOWER RUNS BUT NO HEATPost created: 2013-03-27 Type of Equipment: Furnace Views: 140
This question was created on the page: https://www.furnacecompare.com/furnaces/carrier/comfort-80.html.
On 2013-03-27 JB wrote:
Are you getting any kind of error code? There should be a set of lights or an LED display indicating a code. You can check your owner manual to learn how to read the codes and what they mean.
Also, are the burners firing or are they quiet?
If they are quiet the first and easiest place to start is to check to see if the filter is dirty. This could cause improper air flow through the furnace, which would cause a safety feature to prevent the furnace from firing.You can also trip the circuit breaker and flip it back on to see if the furnace resets and begins to work properly.
It could also be an issue with the air intake (too much or not enough) that is causing the blower to run, but not let the furnace to ignite.
Lastly, there is a pressure switch that allows gas to come into the furnace so it can be ignited and if it is malfunctioning it won't allow gas in or the furnace to ignite.
If it isn't a filter or it doesn't help to do a reset, you will need to call in a certified HVAC tech to diagnose and fix the problem.
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.