My Nordyne furnace is flashing 4 times what does that mean? I am missing the tag on the door that shows all codes.

http://www.grayfurnaceman.com/uploads/1/0/6/6/10667336/m1m_m1b_series_nordyne_error_codes.png

http://www.grayfurnaceman.com/uploads/1/0/6/6/10667336/nordyne_g5rc_fault_codes.pdf

From site

Gas furnace fault or error codes for common furnaces - Gray Furnaceman Furnace Troubleshoot and Repair (http://www.grayfurnaceman.com/-ifc-failure-codes.html)


They both referred to a failed ignition.

Nordyne has a 2 color code red and green. What are BOTH of them doing?
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