Before energy efficiency regulations were placed on heating and air conditioning air running through the furnace would heat up to 140 degrees or more.
Gas heater not heating up.
In these situations the furnace is ready for heating but because it is unable to build a flame it cannot proceed with the process.
A dirty clogged filter limits the airflow eventually causing heat and pressure to build up in the furnace.
The issue may be with the furnace itself but it also may come from a number of other sources.
When the fan runs but the heater produces no heat look for a defective heating element or loose wiring.
Clean the pilot tube and burner orifices by.
If you ve just turned the heating back on after the summer air can become trapped in your radiators causing them to be warm at the bottom but cold at the top.
That being said sometimes furnace problems are the result of faulty ducts a defective heater or both.
This can be because the gas valve is stuck or the control board is unable to communicate.
If this is the case you may need to bleed your radiators.
Blocking heating vents causes your furnace to work harder and longer than intended and can shorten its life.
If all other gas appliances in your home still work you may need to call an electrician to help troubleshoot.
A flame that is predominantly yellow or orange accompanied by poor heating performance indicates impurities in the pilot tube burners or gas line.
If just one or a few of your radiators aren t heating up the most common reason for this is trapped air.
Heater is blowing cold air.
Newer more efficient furnaces are sensitive to the problem and will often shut down.
If your furnace is not keeping your house at the temperature to which you set it then you have a problem somewhere in your heating system.
Check the wiring in the heater and solder any loose wires making sure the heater in unplugged first.
If it seems like the gas line is not the issue and the gas is flowing to other appliances check to make sure the gas supply to the furnace itself is open and clear.
Central heating problems also known as forced air furnaces central heating systems distribute heat throughout your home through a series of ducts.
If the gas supply to the furnace is disrupted your furnace could potentially be lacking the amount of fuel necessary to ignite.
Fan works no heat.