We receive some clients email asking for the methods to solve some problems appeared on the fuel dispenser. Here, we collect the frequently asked questions, and give answers to the common problems.

Possible Troubles & Remedies

You may encounter some problems with the dispensers, if the following phenomena appear, please check according to recommended methods, which may improve your efficiency and reduce your loss. 

Pump doesn’t work occasionally:

1. There a delay function, the interval between two consecutive starts should be longer than 3s. 

2. Check the power supply.

Can not fuel with motor running:

1.If much vapor discharged from vent pipe:

a.Low fuel level in tank, air sucked in. Raise fuel level, 

b.Air is sucked in from filter cover. Replace the filter gasket, 

c.Bypass valve is stuck.Disassemble and clean it.

d.  Air is sucked in from the joint of the pump and the flexible metallic pipe. Replace the gasket.

e. Float valve is stuck. Eliminate dirt, clean or replace the valve.

2. If there is no fuel in the filter and vent pipe works normally: 

a. Bottom valve is stuck. Clean or replace it.

b. Fuel level is too low. Raise the fuel level.

c. Bottom valve leaks, the dry suction of pump is low. Remove the filter top cover, add 1 liters fuel into the filter chamber and turn the pulley counter clockwise.(only for gear pump)

d. The V-belt slips. Tighten or replace the V-belt.

3. If the pump sounds normal, the filter is full of fuel and the vent pipe works normally, check the solenoid valve or control circuit

Slow delivery:

Causes for flow rate decreasing in the process of fueling:

1 . The bottom valve or pump filter is blocked. Clean them.

2. The vane wears. Replace the vane with new one.

3. The fuel level is too low. Raise the level.

4. The underground pipe is too shallow, the direct sunshine results in high fuel temperature. Improve the piping system.