Product Overview

The Pentair 356878Z IntelliFlo & IntelliPro Pump VS Drive is a replacement drive assembly designed for compatible Pentair variable speed pool pumps. The drive is the electronic control component that manages pump speed, programming, and motor operation.

This replacement drive is intended for VS-only IntelliFlo and IntelliPro pump models. It is commonly used when the original pump drive is damaged, unresponsive, displaying errors, failing to power the pump correctly, or no longer allowing speed control.

As a genuine Pentair replacement part, the 356878Z helps restore proper pump control and variable speed operation when installed on the correct compatible pump model.

Ideal For

The Pentair 356878Z pump drive is ideal for:

• Pentair IntelliFlo VS pump repairs
• Pentair IntelliPro VS pump repairs
• Replacing a failed or damaged pump drive
• Restoring variable speed pump control
• Repairing display or keypad issues
• Fixing drive-related pump error conditions
• Pool equipment service and maintenance
• Professional pump repair applications

Key Features

Genuine Pentair Replacement Drive

Designed as an OEM replacement drive for compatible Pentair IntelliFlo and IntelliPro variable speed pumps.

For VS Models Only

This drive is intended for VS-only pump models. It should not be used on incompatible VSF, VF, SVRS, or other non-matching pump versions unless confirmed by the pump’s parts diagram.

Restores Pump Speed Control

The drive controls pump speed settings, schedules, and motor operation, helping restore normal variable speed performance.

Supports IntelliFlo and IntelliPro Pump Platforms

Compatible with select Pentair IntelliFlo and IntelliPro pump models that use the matching VS-only drive assembly.

Service Replacement Component

Commonly used by pool professionals during pump diagnostics, electrical troubleshooting, and drive replacement repairs.

Sold Individually

This listing is for one Pentair 356878Z VS pump drive.

Benefits

The Pentair 356878Z IntelliFlo & IntelliPro Pump VS Drive helps restore the control and operation of compatible variable speed pumps. A failed drive can prevent the pump from starting, cause speed control problems, display error messages, or make the pump difficult to program.

Replacing the drive with the correct OEM part can help extend the life of the existing pump and avoid replacing the entire pump assembly when the motor and wet end are still in usable condition.

For pool owners and service professionals, this part is a practical solution for repairing compatible IntelliFlo and IntelliPro VS pumps and returning the circulation system to reliable operation.

Specifications

Important Compatibility Notes

This replacement drive is designed for select Pentair IntelliFlo and IntelliPro VS-only pumps. Always confirm the exact pump model number, motor label, drive style, and parts diagram before ordering.

This part should not be assumed compatible with IntelliFlo VSF, VF, SVRS, i1, i2, i3, i5, or other specialized models unless the parts diagram specifically calls for part number 356878Z.

Drive failures can be caused by electrical surges, moisture intrusion, incorrect wiring, motor issues, blocked ventilation, or other equipment problems. The pump and electrical supply should be inspected before replacing the drive.

Customer-Facing Q&A

Q: What does this drive do?
A: The drive controls the pump’s variable speed operation, programming, display functions, and motor control.

Q: What pumps does this fit?
A: This drive is designed for select Pentair IntelliFlo and IntelliPro VS-only pump models. Confirm your pump model and parts diagram before ordering.

Q: Will this fit IntelliFlo VSF pumps?
A: Not unless the specific pump parts diagram calls for part number 356878Z. This listing is for VS-only applications.

Q: What are signs of a bad pump drive?
A: Common signs include no display, no pump response, drive error codes, inability to change speeds, intermittent operation, or failure to start.

Q: Can replacing the drive fix my pump?
A: Yes, if the drive is the failed component. However, similar symptoms can also be caused by wiring, motor, breaker, keypad, or power supply issues.

Q: Is this sold individually?
A: Yes. This listing is for one replacement pump drive.

Q: Does this require professional installation?
A: Yes. Pump drive replacement involves electrical components and should be installed by a qualified pool professional or licensed electrician.