A cordless fuel transfer pump makes it easier to transfer gasoline and diesel without manual siphoning. But what should you do if the pump will not draw fuel, suddenly stops, or keeps starting and stopping?
Before assuming your pump is defective, try these troubleshooting steps to identify the possible cause.
Step 1: Check the Battery
If your cordless fuel transfer pump will not start or stops unexpectedly, check the battery first.
· Try a fully charged battery: A depleted or faulty battery may prevent the pump from running properly.
· Check compatibility: Make sure the battery is compatible with your specific pump model.
· Reconnect the battery: Remove and reinstall it to ensure a secure connection.
If the pump still does not work with another fully charged, compatible battery, move on to the next step.
Step 2: Make Sure the Pump Is Fully Submerged
If the pump runs but does not transfer fuel, its position may be the problem.
· Check the pump body: Make sure it is fully submerged in the fuel before switching it on.
· Observe the impeller: If the pump still fails to draw fuel, check whether the impeller rotates normally.
Disconnect the battery before inspecting any components.
If the impeller does not rotate normally, the pump may require further inspection.
Step 3: Check the Automatic Shut-Off Function
Some cordless fuel transfer pumps have a low-liquid shut-off feature that helps prevent the pump from running dry. Depending on the model, the pump may stop automatically after a short period without liquid.
· Make sure the pump is fully submerged before starting it.
· If it stops while transferring fuel, check whether the pump is still submerged.
· Consult the manual to confirm how your model's automatic shut-off functions.
Step 4: Check for Trapped Air
Trapped air inside the pump may prevent it from drawing fuel properly.
If you suspect trapped air, follow the manufacturer's recommended priming procedure:
1. Switch off the pump and disconnect the battery.
2. Following the manual's instructions, hold the trigger and carefully remove the pump from the liquid until the liquid inside has drained. Release the trigger afterward.
3. Fully submerge the pump body in the fuel again.
4. Reconnect the battery and test the pump according to the manual.
Gasoline is highly flammable. Perform fuel-handling procedures outdoors, away from flames, sparks, and other ignition sources, and clean up any spills promptly.
Step 5: Know When to Contact Customer Support
If the pump still will not transfer fuel or continues stopping unexpectedly after these checks, stop testing and consult the product manual or contact the manufacturer's customer support team.
FAQs
1. Why does my electric fuel transfer pump keep starting and stopping?
If your pump repeatedly starts and stops during operation, check the battery and try another fully charged, compatible battery. Also, make sure the pump body is fully submerged in the liquid. If the problem persists, stop using the pump and investigate further.
2. Why is my fuel transfer pump running but not pumping fuel?
The pump may not be fully submerged, or trapped air inside the pump may be preventing normal fuel flow. Check the pump's position and follow the troubleshooting instructions in the product manual.
3. What should I do if my fuel transfer pump suddenly stops working?
First, check the battery charge and make sure the pump body remains fully submerged. Then check whether the automatic shut-off function has been activated. If the pump still does not work after these basic checks, consult the product manual or contact customer support.
