Its either a bad vaccum switch that is closed and cant open or its a ignition control module or (fenwall) not sending power for it to open open panel and slide down cover there is two round black saucer looking switches replace them or jump them by connecting wire to both leads bypassing the switch if heater turns on need vaccum switch if not ignition control module
Answers & Comments
Its either a bad vaccum switch that is closed and cant open or its a ignition control module or (fenwall) not sending power for it to open open panel and slide down cover there is two round black saucer looking switches replace them or jump them by connecting wire to both leads bypassing the switch if heater turns on need vaccum switch if not ignition control module