How to check if central heater or thermostat is the problem for poor heating?

We have central heating, and the second floor (where the bedrooms are) is fine and warm, but our first floor, which is just one long open space divided into a living, dining, and kitchen area, is FREEZING. The thermostat is in the first floor, and when I checked it again last night, it was set to 75 degrees. However, the room temperature reading (again, as it appears on the thermostat) was a constant 65 through out the evening. Is there a way to find out if it's just the thermostat that's broken? Or is it probably our heater that needs to be replaced?How to check if central heater or thermostat is the problem for poor heating?Remove cover on stat. remove red wire and white wire. Twist the 2 together and this will turn on the gas valve to the furnace,How to check if central heater or thermostat is the problem for poor heating?Sounds more like an airflow problem especially if the upstairs is warm. However, there are numerous items that could be the cause.

#1: Check to ensure the heater is functioning properly. If you are not able, please call a professional. Items to check.....flue, safeties, blower, flame color, gas pressure, etc.

#2: Cycle the T-stat to ensure the heater cycles on and off.

#3:If everything proves OK, then look for volume dampers installed in main trunk which may be directing airflow upstairs. Check that vents are open and that ductwork is attached.



Good luck!

NewtHow to check if central heater or thermostat is the problem for poor heating?HOW LONG HAS IT BEEN SINCE YOU CLEANED YOUR RETURN AIR FILTER? CHECK THAT FIRST, YOUR UNIT COULD JUST BE DIRTY OR YOU MAY HAVE AN AIRFLOW ISSUE.