General Topics
Package Units Gas Heating Diagnostic Codes
TP0004

1 Flash = Failed to detect flame within the three tries for ignition.

 2 Flash = Pressure switch or induced draft blower problem detected.

 3 Flash = High limit or auxiliary limit open.

 4 Flash = Flame sensed and gas valve not energized or flame sensed with no "W" signal.

 5 Flash = Over temperature switch open.