Overview

With any Versa Persislatic Pump, regular maintenance and peristaltic tubing replacement are required for normal operation.  For a detailed outline regarding tubing replacement, please visit our tubing replacement guide.  Below are some examples of situations you may encounter with Versa Peristaltic Pumps and how to troubleshoot.

Squeaking Noise:

A motor squeaking noise while running might indicate a potential rotor issue.  To check and replace your rotor, follow the steps below:

1. Disconnect Versa from power
2. Slide off the clear plastic rotor cover
3. Check your peristaltic tubing for any damage or blockage
4. Using a 5/32" hex key, remove the center screw from the rotor
5. Now slide the rotor off the motor shaft 
6. Gently clean the motor shaft and remove any debris (shaft should be smooth)
7. Slide the new rotor assembly on to the motor shaft and carefully align the drive gear
8. Tighten the rotor screw and install your peristaltic tubing assembly
9. Complete re-assembly and power on

**A replacement Versa may be required if portions of the rotor bearing are seized on to the motor shaft.  In this case, contact customer service for assistance**

Motor Grinding Noise / Stalling: 

A grinding noise or Versa that is not dosing, could indicate a stalled motor.  To troubleshoot a motor stall, follow the steps below.

1. Disconnect Versa from power
2. Remove the clear plastic rotor cover
3. Disconnect input and output tubing connections
4. Clean, and clear out input/output lines and tubing connections (be sure to check for obstructions)
5. Remove and inspect peristaltic tubing (Check for damage or blockages, and clean/replace as needed)
6. Re-assemble and power on

**If dosing a saltwater based solution or one that has a tendency to crystalize, it is recommended to dilute your solution.  To do this, reduce the solution by 1/3 with RODI water and increase your dose rate by 1/3.  This will help to prevent future blockages**

Back Siphon:

If your Versa is back siphoning, please follow the steps below to troubleshoot:

1. Disconnect Versa from power
2. Slide down to remove the clear plastic rotor cover
3. Verify the tubing retainer is installed properly
4. Verify peristaltic tubing is clean and free of obstructions
5. Re-assemble and power on

**Replace peristaltic tubing and tubing retainer should the issue persist after reassembly** 

Tubing Leaking

Leaking at the peristaltic tubing connections can occur under rare circumstances.  Follow the steps below to troubleshoot a Versa tubing leak.

1. Disconnect Versa from power
2. Slide down to remove the clear plastic rotor cover
3. Remove input and output tubing and check for blockages
4. Inspect the peristaltic tubing for damage or blockages
5. Re-assemble and power on

**Should the leaking continue, replace the peristaltic tubing and tubing retainer**