Technical Support - DIFFUL pumps Expert

When you have any technical problems you can always contact our customer service, we will provide you with the best solution.

2023 DIFFUL Solar Pump Manual

Safety instruction

1. It is strictly forbidden to test the pump without the controller,

otherwise the motor will be burned.

2. The solar water pump must be connected to our own controller,

otherwise the motor will be burned.

3. It is strictly forbidden to connect wires when the power is on,

otherwise there will be a risk of electric shock.

4.When the controller is running, it is strictly forbidden to touch or

plug the power cord and output motor cord.

5.The water pump and controller must be properly grounded

before use, otherwise there will be a risk of electric shock.

Click To Download

Fault Information and Troubleshooting Method

Fault Code	Fault Description	Causes and Solutions of Fault	Recovery Procedure
P0	Hardware Overcurrent	•Motor model is mismatch, please choose matching pumps. •UVW three-phase short-circuit connection, please rewiring to ensure the normal installation of UVW.	Automatically remove after 30s
P43	Phase Protection	•UVW three-phase open circuit, please rewiring to ensure it reliable contact.	Automaticallyremove after 30s
P46	Stall Protection	•Motor model is mismatch, please choose matching pumps. •Pump extension cord is too long, please reduce the extension cord. •Power is too low, increase the power supply. •Pump bearing is stuck, please clean pump bearings.	Automaticallyremove after 30s
P49	Software Overcurrent	•Water pump bearing stuck, clean pump bearings. •UVW three-phase short-circuit connection, please rewiring to ensure the normal installation of UVW.	Automaticallyremove after 30s
P50	Low Voltage Protection	•The input voltage is too low, please distribute power refer to the electrical characteristics.	Voltage return tonormal, remove the fault immediately
P51	High Voltage Protection	•The input voltage is too high, please distribute power refer to the electrical characteristics.	Voltage return tonormal, remove the fault immediately
P48	Dry-run Protection	•Not all of air in the pump is exhausted, cut off the power, re-power and start the pump drainage after 30 seconds. •There is no water in the water tank waiting for water, it will restart.	Automatically clear after 30 minutes or repower to clear
P60	High Temperature Protection	•The temperature of controller MCU is more than 90°C.	Automatically clear after the temperature is normal
E8	Current Sampling Failure	•Cut off the power and restart after 30 seconds.	Restart the power
PL	Power Shortage	•No sunlight, waiting for the sunlight to restart. •Solar panel matching error, refer to the recommendation to match correctly.	At the first 5 times,it will removal after 30 seconds, and then 30 minutes to removal
ALARM	Reverse connection protect	•Exchange the positive and negative wire.	Restart the power

Product maintenance video

P43 Troubleshooting

Dive into the world of troubleshooting P43 error codes with our comprehensive guide! Learn how to diagnose solar water pump controller issues, decode the mysteries of the WVU line, and master the art of measuring resistance values. Get to the root of the problem and keep your systems running smoothly.

P43 Maintenance Guide

Welcome to a deep dive into P43 troubleshooting and repair! Learn the art of rectifying error codes by replacing faulty components. Our detailed guide covers both resistor and chip replacements, ensuring your devices are back in action in no time. Watch now and empower yourself with essential repair knowledge.

P48 troubleshooting

Learn how to troubleshoot and fix the P48 error code on water pumps. In this comprehensive guide, we'll walk you through step-by-step procedures for diagnosing and resolving common issues. Discover how to ensure proper water pump water level, assess shaft and coupling dimensions, examine shaft wear, and inspect impeller support. Don't let P48 errors disrupt your operations. Watch now to keep your water pump running smoothly.

PL Troubleshooting

Curious about the enigmatic PL error codes in solar controllers? Look no further! Our tutorial delve into the common causes of PL errors, including inadequate sunlight and pump-related issues. Join us as we provide step-by-step instructions to troubleshoot and fix these errors, ensuring smooth operation for your solar-powered systems.

Black Screen Troubleshooting

Discover how to troubleshoot a black screen issue in solar water pump controllers. This comprehensive guide covers using a multimeter, DC controllers, power supplies, and voltage testing. Learn the step-by-step process to identify and resolve common causes of black screen problems, including loose connections, damaged displays, and faulty fuses. Ensure your solar water pump operates smoothly and efficiently with our expert tips.

Black Screen Maintenance

Having trouble with a black screen on your solar water pump controller? Watch our detailed tutorial on how to replace a damaged display screen. Get your pump system back in action with this easy-to-follow DIY guide.

E0 Maintenance

Experiencing an E0 error code on your solar water pump controller? Don't worry, we've got you covered! Our comprehensive guide will walk you through the steps to diagnose and fix the E0 error, ensuring your solar pump operates at its best. Learn how to identify a damaged chip, gather essential tools like tweezers, soldering iron, solder wire, and a replacement chip. Follow our step-by-step instructions to carefully remove the faulty chip and replace it with a new one, aligning the white dot on the chip with the corresponding solder pad. After successful soldering, power up your controller to test. If the E0 error vanishes, you've successfully completed the repair!

P0 Troubleshooting

Looking to troubleshoot solar water pump controller error code P0? Check out our comprehensive guide for step-by-step instructions and tips. We'll walk you through the process of diagnosing issues with the pump, controller, and wiring. Don't let P0 errors disrupt your solar pump system - get back on track with our expert guidance.

P0 Maintenance

Discover the essential steps to resolve the P0 error code in your solar pump controller. Follow our expert guide to replace the damaged MOS tube, ensuring smooth and efficient functionality. Learn how to dismantle, replace, and test the new MOS tube, all while avoiding common pitfalls. Get your solar pump system back on track with our comprehensive repair instructions.