MLG TKOF WITH 'FUEL HEAT ON' LIGHT ILLUMINATED.

Narrative

WHILE TAXIING FOR DEP; THE 'L FUEL HEAT ON' ADVISORY LIGHT LOCATED ON THE ANNUNCIATOR PANEL ILLUMINATED ADVISING US THAT THE L FUEL HEAT VALVE HAS BEEN ACTIVATED TO THE OPEN POS ALLOWING HIGH PRESSURE BLEED AIR TO ENTER THE FUEL/AIR HEAT EXCHANGER TO HEAT THE FUEL TO PREVENT ICING. WHILE CONTINUING OUR TAXI TO THE ACTIVE RWY MY FO AND I DISCUSSED THE SIT. AFTER CHKING THE ABNORMALS PROCS AND REVIEWING OUR OPTIONS; WE DECIDED THAT THE FLT COULD PROCEED TO OUR DEST SAFELY BASED ON THE FOLLOWING FACTS: 1) BOTH FUEL AND OIL TEMPS WERE NORMAL; INDICATING THAT THE HIGH PRESSURE BLEED VALVE WAS CLOSED AND THAT THE ADVISORY LIGHT WAS A FAULTY INDICATION. 2) NO ICING WAS FORECAST FOR OUR RTE OF FLT. 3) DURING OUR FLT OUR FUEL AND OIL REMAINED IN THE NORMAL RANGE AND NO FURTHER INCIDENT OCCURRED. AFTER ARRIVING AT OUR DEST I INFORMED OUR MAINT AND WROTE THE DISCREPANCY UP. SUPPLEMENTAL INFO FROM ACN 233856: WITH FAA FLT STANDARDS INSPECTOR ON JUMP SEAT; WE PUSHED BACK AND THE FUEL HEAT CIRCUIT BREAKER POPPED.