
Furnace Control Board Failure? It Might Be Time for a Replacement
A control board failure is a major furnace problem. It may require replacing the appliance, depending on the unit’s age and the severity of damage. The things to do when your heater won’t turn on won’t help if the furnace control board has gone bad. If it’s not fixed, the entire system can malfunction. When you have a faulty control board, performance issues, particularly with the fans and burners, can occur. We’ll look at what this component does and when it’s time to repair it or schedule a furnace replacement. Understanding Your Furnace’s Control Board The control board is an electronic circuit board located inside your furnace. There are two common types; these include a simple ignition furnace control board, which is found in older models and controls the igniter, flame sensor, and gas valve (it’s installed alongside the fan control board). It’s less expensive and easier to install than an integrated control board, which, integrates fan and ignition control in modern furnaces and works more efficiently. Where the Control Board Is Located The control board is located inside the furnace’s control panel. You can find it behind the front panel at the bottom of the appliance (check the manual
