Furnace Control Board Problems

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.

Furnace control board problems.

The problem is that the blower fan will not come on because the fan relay on the control board has failed. Interruption of the regular sequence of events. Here are signs you may have a malfunctioning furnace control board. It is hot and they need air conditioning now.

If the furnace s draft inducer will not start or if the blower motor will not start then this could very well be a control board problem. 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. If you have an electric furnace some causes of circuit board failure may include the following.

Tapping on the relay can sometimes help but only delays the inevitable failure of the board. Debris and dust can cause the air filters to clog.