Here are signs you may have a malfunctioning furnace control board.
Furnace control board problems.
Debris and dust can cause the air filters to clog.
After a certain period of time the furnace wires will become loose due to the vibration.
It is on the weekend when getting a control board is impossible or the person does not want to wait on a new control board to be shipped in before they can use their air conditioner.
If you have an electric furnace some causes of circuit board failure may include the following.
I hope the youtube video below will help you troubleshoot your furnace s control board.
If your furnace starts to make you either too hot or too cold and the thermostat settings.
When an electro mechanical switch like the ones on our boards is suddenly being used after a long period of downtime like the end of one winter to start of the next winter it can become permanently stuck.
It is hot and they need air conditioning now.
Elaborating on the above warning pay attention to your.
The problem is that the blower fan will not come on because the fan relay on the control board has failed.