# Replacement Screen Board/Controller - Toggle Selection

If you replace either the KL20305 BrewZilla [Gen 4 - RAPT Screen Controller Case with Wire and LCD Screen Board](https://kegland.com.au/products/brewzilla-gen-4-rapt-screen-controller) or the KL30106
 BrewZilla Gen 4 - LCD Screen Board then it is important to select the correct model of Gen 4 BrewZIlla before installing the Controller or Screen Board.

This is a manual toggle mswitch on the board that selects the power of the corresponding Gen 4 BrewZilla unit.

This is easy to do and will only take a moment.

{% stepper %}
{% step %}

### Open Controller Housing

On the rear of the Screen Controller housing are 4 screws. Remove these to open the housing
{% endstep %}

{% step %}

### Locate the Power Toggle

The toggle switch can be accessed directly. The Screen Board does not need to be removed to access this - see images below
{% endstep %}

{% step %}

### Select the correct Toggle Option

Refer to the images below. There are three toggle options labelled 35L, 60L, 100L. These correspond to the 35L BrewZilla, the 65L BrewZilla and the 100L BrewZIlla resepectively.

Move the toggle so that it corresponds to your model of BrewZilla
{% endstep %}

{% step %}

### Reassemble the Housing

Once this is correctly selected, reassemble the housing by placing the two halves together and replacig the four screws.
{% endstep %}

{% step %}

### Test the Screen Controller

To ensure that this has been selected correctly, once the housing has been reassembled, plug the controller into the BrewZill and plug the BrewZilla into an outlet to turn it on. Once it has booted up, check that the Play/Pause button is off so that the elementsa are not energised. Use the Cycle/Back button to navigate to power settings. If necessary, change the power to 100%. The displayed wattage should now reflect the wattage of the BrewZilla based on boiler size

See below for correct power outputs
{% endstep %}
{% endstepper %}

### Location of Toggle Switch on Screen Board

<figure><img src="/files/AkQNUrmJ4WmGz43ozKIU" alt=""><figcaption></figcaption></figure>

### Close View of Toggle Switch

<figure><img src="/files/OsJVOlrBlRDfFkf2RH2x" alt=""><figcaption></figcaption></figure>

### Correct Power Outputs

1. 35L Gen 4 BrewZilla: 100% = 2400W
2. 65L Gen 4 BrewZilla: 100% = 3500W
3. 100L Gen 4 BrewZilla: 100% = 6600W


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