Main card for hybrid inverter WKS EVO 3 and 5 kVA

Replacement main board for the WKS EVO hybrid inverter

The WKS EVO hybrid inverter plays a central role in many off-grid or self-consumption solar installations. When an electronic fault occurs on the main board, replacing this component allows the inverter to be returned to service without replacing the entire unit — a cost-effective and efficient solution.

This main board is a genuine WKS spare part, designed specifically for the EVO range hybrid inverters in the 3 kVA and 5 kVA versions. It ensures full compatibility with the embedded electronics of these models.

Compatibility

This board is compatible with the following models:

• WKS EVO 3 kVA hybrid inverter
• WKS EVO 5 kVA hybrid inverter

Before placing an order, it is recommended to verify the exact reference of your inverter as well as the hardware version of your unit. If in doubt, our technical team is available to assist you in identifying the correct part for your installation.

Why replace the main board?

The main board is the electronic component that controls all functions of the hybrid inverter: DC/AC conversion management, battery charge regulation, communication with monitoring modules, and electrical protection processing. A failure of this component may manifest as:

• Complete inverter shutdown with no apparent cause
• Persistent error codes displayed on the interface
• Loss of communication with connected equipment
• Erratic behaviour during charge or discharge cycles

In these situations, diagnosis by a qualified technician can confirm whether the main board needs to be replaced.

Installation and safety precautions

Replacement of the main board must be carried out by a qualified technician authorised to work on low-voltage electrical installations. Any work on the inverter requires prior disconnection of the entire system (solar panels, batteries, grid) in accordance with applicable safety regulations.

Wattuneed recommends entrusting this operation to a professional installer in order to maintain the device warranty and ensure the safety of the installation.

Genuine WKS spare part

By choosing a genuine spare part, you ensure electronic and mechanical compatibility with your inverter. The use of non-compliant components may cause additional malfunctions or damage other elements of the installation. Wattuneed, official WKS distributor in Belgium and France, guarantees the supply of authentic parts.