What’s the reason for power failure of the complete fuel dispenser?

 Possible Faults Sources:


a.       380VAC or 220VAC external power supply fails to feed the fuel dispenser


b.       Internal power supply module of fuel dispenser develops a fault


c.        Interior wiring of fuel dispenser is loosened



Recommended Solutions:


a.       Open the cover of explosion-proof power junction box, and check whether a 380VAC or 220VAC input voltage is available or not


b.       Test individually the faults of internal power supply one by one


c.        Check whether the interior wiring of fuel dispenser is normal or not