Troubleshooting the FIZZIQ LCD Screen

On rare ocassions, the FIZZIQ LCD screen can go dark. This can sometimes be caused by a loose cable.

To access the LCD screen, you will need to remove the back panel of the FIZZIQ machine. This will require a 3/32" Allen wrench. There are six small screws that hold the back panel of the machine on. See Figure 1 for the location of these six screws, circled in red.

Remove these screws carefully. The screws and chassis are both stainless steel, and stainless-on-stainless steel can be very "sticky" due to microscopic spalling. It is very important to have a 3/32" Allen wrench that is not loose or worn--the fit between wrench and screw must be very snug. If the fit feels loose, you risk stripping the hex drive of the screw. Our recommendation is to use a brand new Allen wrench--stripping a screw will make repair almost impossible.

Remove the six screws and lay the back panel down. You do not need to remove the hoses on the back of the machine. If a screw seems stuck, give it a drop of WD-40, or comparable bolt breaker, and let it sit for a few minutes.

You will see several gray ribbon cables inside the machine (see Figure 2). You need to find the one that attaches to the LCD screen on the control panel. Figure 3 shows the cable that attaches to the LCD being pointed at. The cable connector is circled in red.

Figure 4 shows the proper attachment of the LCD cable to the LCD connector, circled in red. The path of the cable is traced in a yellow highlight on the image.

The white connector at the end of the cable slides over four pins on the LCD. Note that there are two rows of four holes on the white cable connector, but only the row closest to the front of the machine is used. Note that when the cable connector is properly installed, the red wire of the LCD ribbon cable is on top of the cable, on the edge of the cable closest to the top of the machine.

If this connector has come off the four pins of the LCD, this will cause a screen blackout. See Figure 5 for a close-up of the proper orientation of the connector when attached properly. 

Take note also of the blue jumper on the end left side of the LCD panel in Figure 5, circled in red. If this jumper is missing, the screen will also black out.

As a last thing to check, note the square blue block immediately to the left of the four-pin ribbon cable connector (Figure 5). There is a Phillips screw in the middle, which is the screen contrast adjustment. In rare cases, the contrast setting can shift all the way to black. With the machine on, trying turning the screw left and right and see if you can find a setting where the screen looks normal.