Common faults of the power supply system of fuel dispenser and overhaul methods
The faults of power supply system of fuel dispenser include the faults of external power pack and the faults of internal power supply module of fuel dispenser. To overhaul the faults of power supply system of fuel dispenser, check whether the external power pack is normal or not first; when the faults of external power pack are eliminated, check the internal power supply module of fuel dispenser for faults. The faults of power supply system of fuel dispenser usually include the following: powerfailure of complete fuel dispenser, sometimes startup and sometimes non startup, and motor startup slackoff. The abovementioned fault symptoms and problem source are analyzed in the following.