Tested system it heating for whole home. Tested and found the spark igniter wiring was rubbed out on to metal and caused the igniter to not spark inside the burner section. Was able to cover this wire up and move it so that way the system would fire up with no issues. Looked at all the components of the system, and found that the flue pipe was also single wall and lots of tape all over it. The blower wheel and the ductwork was also very dirty. System was also lacking a wet switch for best flood protection. We cleaned the blower wheel today and tested the system fully with no issues at this time.