What to Do When a Peristaltic Pump Head Doesn't Rotate

As a precision fluid transfer device, a peristaltic pump whose pump head doesn't rotate can seriously affect its performance. Below, we will discuss in detail the possible reasons and solutions for a peristaltic pump head not rotating.

I. Possible Reasons Why a Peristaltic Pump Head Doesn't Rotate

1. Power Issues: First, check if the power cord is properly connected, if the fuse has blown, and if the internal power connection wires in the chassis are loose. These issues can all prevent the pump head from working normally.

2. Motor Failure: The motor is the core component of the peristaltic pump. If the motor fails, such as the drive board indicator light not illuminating or poor connection of the motor and drive board wires, it will cause the pump head to not rotate.  

3. Damaged Pump Head Rotor: If the pump frequently stops or the flow rate decreases, it may be that the pump head rotor is worn or cracked. In this case, the rotor needs to be replaced promptly.

II. Solutions for a Peristaltic Pump Head Not Rotating/Starting

1. Check Power and Motor: First, ensure the power cord is properly connected, the fuse is not blown, and check if the connection wires between the motor and the drive board are in good condition. If there are any problems, repair or replace them in a timely manner.

2. Clear Tubing: If the tubing is blocked, it can also cause the pump head to not rotate. At this time, cleaning fluid should be used to clear the pipes to ensure smooth passage of the fluid.

3. Replace Accessories: If the pump head rotor is damaged, a new rotor needs to be replaced promptly. At the same time, regularly inspect and replace worn contour components and other accessories to ensure the normal operation of the peristaltic pump.

III. How to Turn Off the External Control Mode of a Peristaltic Pump

In some cases, if the peristaltic pump is always in external control mode, it may cause the pump head to not rotate. At this time, it is necessary to turn off the external control mode. The specific method is as follows:

1. Enter the setup interface of the peristaltic pump and find the "External Control Enable" option.

2. Select the "Disable" option to deactivate the external control function.

3. Save the settings and exit the interface. At this point, the peristaltic pump should be able to start normally and the pump head should rotate.

In summary, a non-rotating peristaltic pump head can be caused by various reasons, requiring careful inspection and troubleshooting. Additionally, understanding how to turn off the external control mode is an important step in resolving such problems.