TG / TH DGH FC12, FC13, FC14 P-100 (4/5 star) pressure switch related faults
FC12: P-100 closed at start (4/5 star)
FC13: P-100 failed to close (4/5 star)
FC14: P-100 open for greater then 30 seconds during run (4/5 star)
Click here to view YouTube video Spectrolink SCC accessing and clearing fault code history
COMBUSTION FAN SUCTION PRESSURE - CORRECT METHOD OF TESTING FOR ACCURATE READINGS DURING NORMAL HEATER OPERATION
