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- LUCCA A53 (Direct Plumb & Mini) by La Spaziale
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LUCCA A53 Mini / Mini Vivaldi: Adjusting Expansion Valve From the Front
Below you will find instructions for adjusting the expansion valve from the front of the La Spaziale LUCCA A53 Mini Espresso Machine. (Difficulty ☕☕)
Unplug your machine and allow it to cool down fully before doing this procedure.
Tools Needed:
- Phillips Screwdriver
- 17mm Wrench
- Adjustable Wrench
1. Remove the front panel of the A53.

2. Remove the fitting pointed out here. You will want to put a towel down underneath the machine as some water will spray out.

3. Move the copper pipe to the side, snip the zip tie attached to it and push the cord down out of the way.

4. Adjust the expansion valve by holding it forward and using the adjustable wrench to turn the lower nut. Tightening the expansion valve will raise the brew pressure, loosening the expansion valve will lower the brew pressure.
