Upon arrival I found ignitor cracked. When I replaced the ignitor I found the circuit board not sending 24 volts to gas valve. When I recycled unit on to test again it would turn main fan on and not inducer. Replaced main circuit board and tested unit again and operation of the unit is normal. I cycled unit several times and tested other safeties and everything was good. We discussed new unit but they are potentially selling home soon and wanted to repair current system. Payment received