Tools Needed: Phillips Screwdriver Pick Heat Resistant Silicone Sealant New Coffee Boiler Temp Sensor 1. Remove the panels of the A53 Mini. 2. Unplug the wires of the temperature probe by moving the orange sleeves up and pulling them apart. 3....

<h3 id="tools-needed">Tools Needed:</h3><ul><li>Phillips Screwdriver</li><li>Pick</li><li>Heat Resistant Silicone Sealant</li><li><a href="https://clivecoffee.com/products/la-spaziale-temp-sensor?ref=parts-and-repair" rel="noopener" target="_blank">New Coffee Boiler Temp Sensor</a></li></ul>1. <a href="https://clivecoffee.com/pages/help-center?hcUrl=%2Fen-US%2Flucca-a53-mini-vivaldi-panel-removal-883540" rel="noopener noreferrer" target="_blank">Remove the panels of the A53 Mini</a>.2. Unplug the wires of the temperature probe by moving the orange sleeves up and pulling them apart.<figure class="hs-align-center"><img alt="LUCCA A53 Mini / Mini Vivaldi: Replacing Coffee Boiler Temperature Probe" class="hs-image-align-none fr-fic fr-dii" src="https://cdn2.hubspot.net/hubfs/4309359/Screenshot_2018-04-20-11-38-12-1.jpg"></figure>3. Remove the old temperature probe by using a pick to pull the silicone sealant out of the port.<figure class="hs-align-center"><img alt="LUCCA A53 Mini / Mini Vivaldi: Replacing Coffee Boiler Temperature Probe" class="hs-image-align-none fr-fic fr-dii" src="https://cdn2.hubspot.net/hubfs/4309359/Screenshot_2018-04-20-11-39-03-1.jpg"></figure>4. Put the new temperature probe in place, use a small dab of heat resistant silicone sealant to plug the port and then reconnect the wires.<figure class="hs-align-center"><img alt="LUCCA A53 Mini / Mini Vivaldi: Replacing Coffee Boiler Temperature Probe" class="hs-image-align-none fr-fic fr-dii" src="https://cdn2.hubspot.net/hubfs/4309359/20180420_113517-1.jpg"></figure>

LUCCA A53 Mini / Mini Vivaldi: Replacing Coffee Boiler Temperature Probe

Tools Needed:- Multimeter- Clip-style multimeter leads- Pick or similar implement- Wire snips or scissors Remove the panels from the machine to access the temperature sensor.1. Identify the coffee boiler temperature sensor.2. Snip the zip tie...

Tools Needed: - Multimeter - Clip-style multimeter leads - Pick or similar implement - Wire snips or scissors <a href="https://clivecoffee.com/pages/help-center?hcUrl=%2Fen-US%2Flucca-a53-mini-vivaldi-panel-removal-883540" rel="noopener noreferrer" target="_blank">Remove the panels from the machine to access the temperature sensor.</a> 1. Identify the coffee boiler temperature sensor. <img alt="Lucca_A53_testing_coffee_temp_probe_01" class="hs-image-align-none fr-fic fr-dii" src="https://4309359.fs1.hubspotusercontent-na1.net/hubfs/4309359/Lucca_A53_testing_coffee_temp_probe_01.jpg" style="width: 688px; height: auto;" width="688"> 2. Snip the zip tie holding the temperature sensor leads together. Pull back the insulators and separate the electrical connections. <img alt="Lucca_A53_testing_coffee_temp_probe_03" class="hs-image-align-none fr-fic fr-dii" src="https://4309359.fs1.hubspotusercontent-na1.net/hubfs/4309359/Lucca_A53_testing_coffee_temp_probe_03.jpg" style="width: 688px; height: auto;" width="688"> <img alt="Lucca_A53_testing_coffee_temp_probe_04" class="hs-image-align-none fr-fic fr-dii" src="https://4309359.fs1.hubspotusercontent-na1.net/hubfs/4309359/Lucca_A53_testing_coffee_temp_probe_04.jpg" style="width: 688px; height: auto;" width="688"> 3. Use a pick or similar implement (a small screwdriver works well) to remove the silicone plug that holds the temperature sensor in place, then pull the sensor from the machine. <img alt="Lucca_A53_testing_coffee_temp_probe_02" class="hs-image-align-none fr-fic fr-dii" src="https://4309359.fs1.hubspotusercontent-na1.net/hubfs/4309359/Lucca_A53_testing_coffee_temp_probe_02.jpg" style="width: 688px; height: auto;" width="688"> 4. Set your multimeter to the resistance setting (&#x3A9;) and set the range to the 20M setting. Touch the multimeter probes to the temperature sensor leads or attach the multimeter clips. <img alt="Lucca_A53_testing_coffee_temp_probe_05" class="hs-image-align-none fr-fic fr-dii" src="https://4309359.fs1.hubspotusercontent-na1.net/hubfs/4309359/Lucca_A53_testing_coffee_temp_probe_05.jpg" style="width: 688px; height: auto;" width="688"> The temperature sensor acts as a variable resistor, with the resistance value changing inversely in response to changes in ambient temperature. The resistance value decreases as the temperature of the sensor&#xA0;increases and vice versa. At roughly room temperature the probe should display a resistance of between 200k&#x3A9; and 300k&#x3A9; (or 0.20M&#x3A9; to 0.30M&#x3A9;). 5. Warm the sensor up in your hand, while keeping an eye on the multimeter display. You should see the resistance value start to drop almost immediately as the sensor warms up. Look for a steady decrease. Let go of the multimeter and watch as the resistance value climbs back up as the sensor cools down. <img alt="Lucca_A53_testing_coffee_temp_probe_06" class="hs-image-align-none fr-fic fr-dii" src="https://4309359.fs1.hubspotusercontent-na1.net/hubfs/4309359/Lucca_A53_testing_coffee_temp_probe_06.jpg" style="width: 688px; height: auto;" width="688"> <img alt="Lucca_A53_testing_coffee_temp_probe_07" class="hs-image-align-none fr-fic fr-dii" src="https://4309359.fs1.hubspotusercontent-na1.net/hubfs/4309359/Lucca_A53_testing_coffee_temp_probe_07.jpg" style="width: 688px; height: auto;" width="688"> If your multimeter displays 0 resistance or infinite resistance (O.L.), the temperature sensor is most likely faulty. If the temperature sensor does not consistently respond to changes in temperature that is also an indication that it&apos;s likely faulty. NOTE: <a href="https://clivecoffee.com/pages/help-center?hcUrl=%2Fen-US%2Flucca-a53-vivaldi-replacing-coffee-boiler-temperature-sensor-883525">LUCCA A53 / Vivaldi: Replacing Coffee Boiler Temperature Sensor</a>

LUCCA A53 / Mini / Vivaldi: Testing the Coffee Boiler Temperature Sensor

Clive Coffee

Brew Boiler Maintenance and Troubleshooting

LUCCA

LUCCA A53 Mini/Mini Vivaldi

Plumbing an Espresso Machine for Flojet Installation

Water Filter and Softener System Installation

The Importance of Water Composition in Espresso

Formatting Examples

How Water Affects Your Espresso Machine

Upgrading your Water Softener Cartridge from 2 Cartridges to 1

How Water Can Make or Break Your Coffee

Water

Using Grindz to Clean Your Grinder

Dialing In Your Grinder

Jammed Burrs in your Espresso Grinder

How to Clean Your Grinder

Espresso Tech 101: Testing a Motor Capacitor

Grinder Cleaning & Maintenance

Espresso Tech 101: Basic Bench Testing

Removing and Cleaning Group Head Screens

How to Clean and Backflush E61 Group Head Machines

Understanding Your Brew Pressure Gauge

Using Rinza to Clean Your Steam Wand

Steam / Hot Water Leak: Diagnosis & Repair

PID Settings and Clive Recommended Settings

How to Clean and Backflush (non-E61 Group Head) Espresso Machines

E61 Cam Lubrication for Sticky/Squeaky Brew Lever

Water: Descaling Your Espresso Machine

E61 Gicleur Inspection and Cleaning

Cup Ratings; What do they mean?

Espresso Tech 101: Vibratory Pump Re-Priming

Espresso Machine Cleaning & Maintenance

Espresso Brew Ratios From La Marzocco

What is Channeling?

How to Pull the Perfect Shot of Espresso

Single baskets: What's the deal?

How to Tamp (Correctly)

Brew Ratios, Basket Sizes, and the Confusion over a "Double Shot"

Clive's Flow Control Recipe

Coffee & Pulling Shots

Steam Wand Tips and Milk Steaming Speed

How to Make Latte Art

How to Steam Milk

Steaming Milk

Espresso 101

La Marzocco: Receiving Your Espresso Machine

Unboxing Your Machine

Machine Serial Number Locations

Unboxing

Getting Started

Repackaging the ECM Synchronika

Repackaging the Profitec Pro 700

Repackaging the LUCCA A53/A53 Mini (Vivaldi II/Mini Vivaldi II)

Repackaging the LUCCA A53/A53 Mini (Vivaldi II/Mini Vivaldi II) with Instapack

Repackaging the Profitec Pro 300

Repackaging the ECM Casa V

Repackaging the LUCCA M58

Repackaging a QM67 in Pro 500 Box

Repackaging the ECM Classika

Repackaging the Profitec Pro 600

Repackaging the Rancilio Silvia Pro or Pro X

Repackaging the Profitec Pro 500

Repackaging the Profitec Pro 800

Repackaging the ECM Puristika

Repacking the Lelit Mara X

Repackaging the Lelit Bianca

Repackaging the Lelit Elizabeth

Repackaging the Eureka Atom 65 / 75

Repackaging the Bezzera Duo DE/MN

Repackaging the Bezzera BZ10

Repackaging the Alex Duetto

Repackaging the Eureka Zenith

Repackaging the Macap M7D

Repackaging the Profitec T64

Repackaging Instructions

Clive Coffee Warranty

Repairs

Getting Warranty Service

Clive Coffee 1-year Commercial Warranty

Espresso Machine: Need Technical Assistance?

Grinders: Need Technical Assistance?

Warranty and Repairs

Credit Card Charges for Espresso Machines

Free ground shipping over $75

Changes, Holds, or Pick-Up Requests to Orders

How do I modify an order once it's been placed?

Returns & Exchanges

How to track a freight shipment

Order Changes, Returns, Shipping & Payment

Warranty, Ordering & Returns

Open Box vs Certified Pre-Owned

Trade-In Program Details

Open Box, Certified Pre-Owned & Trade-In Program

LUCCA A53 Mini: Using Pre-Infusion

LUCCA A53 Mini / Mini Vivaldi II: Draining the Boiler

LUCCA A53 Mini: User Manual

LUCCA A53 Mini: Setup Guide Video

LUCCA A53 Mini / Mini Vivaldi: Adjusting The Expansion Valve

LUCCA A53 Mini / Mini Vivaldi: Vacuum Breaker

LUCCA A53 Mini / Mini Vivaldi: Cleaning the Fill Probe

LUCCA A53 Mini / Mini Vivaldi: Replacing Safety Valve

LUCCA A53 Mini / Mini Vivaldi: Steam Boiler Temperature Sensor Cleaning and Replacement

LUCCA A53 / A53 Mini / Vivaldi / Mini Vivaldi: Cleaning or Replacing Group Head Solenoid (pre-2019)

LUCCA A53 Mini / Mini Vivaldi: Cleaning Fill Solenoid

LUCCA A53 / A53 Mini / Vivaldi: Group Head Cleaning and Maintenance

LUCCA A53 Mini / Mini Vivaldi: Hot Water Solenoid Disassembly

LUCCA A53 Mini / Mini Vivaldi: Cleaning Flow Meter

LUCCA A53 Mini / Mini Vivaldi: Cleaning Fill Probe and Sealing Boiler Connection

LUCCA A53 Mini / Mini Vivaldi: Inspecting and Cleaning the Water Tank Check Valve

LUCCA A53 Mini / Mini Vivaldi: Inspecting Inlet Tubing

Lucca A53 Mini / Mini Vivaldi: Expansion Valve (OPV) Service and Replacement

Cleaning/Maintenance

LUCCA A53 Mini: Steam Boiler Over-pressurizing

LUCCA A53 Mini / Mini Vivaldi: Vibratory Pump Replacement

LUCCA A53 Mini: No Water From Group Head

LUCCA A53 Mini: Machine Not Turning On

LUCCA A53 Mini / Mini Vivaldi: OPV / Steam Gauge Fitting Leak

LUCCA A53 Mini: Priming the pump

LUCCA A53 Mini: Steam Boiler Not Heating

LUCCA A53 Mini / Mini Vivaldi: Replacing the Steam Lever

LUCCA A53 Mini: No Hot Water From Water Tap

LUCCA A53 Mini / Mini Vivaldi: Pump Pressure Gauge Vibration/Oscillation

LUCCA A53 / A53 Mini: Flowmeter Error / Volumetric Dosing problems

LUCCA A53 / A53 Mini: Machine Tripping the GFCI

LUCCA A53 Mini: Draining Steam Boiler With No Drain Nut

LUCCA A53 / A53 Mini: 15 & 20 Amp Power Modes

LUCCA A53 Mini / Mini Vivaldi: Replacing the Pressure Gauge

LUCCA A53/A53 Mini: SSR (Solid State Relay) Replacement

Lucca A53 Mini / Mini Vivaldi: Replace Magnet Float

Lucca A53 Mini: Force-flushing the Group Head

LUCCA A53 Mini / La Spaziale Mini Vivaldi: Fuse Housing Inspection and Replacement

General Troubleshooting

LUCCA A53 Mini: Programming Steam Boiler On/Off

LUCCA A53 / A53 Mini: Programming Volumetric Settings

LUCCA A53 / A53 Mini: Programming Steam Temperature Settings

Programming

LUCCA A53 / A53 Mini: Drying Inside of Temp Probe

LUCCA A53 Mini / Mini Vivaldi: Removing Steam Boiler Fill Valve

LUCCA A53 Mini: Steam Valve Assembly Replacement

Steam Boiler Maintenance/Troubleshooting

LUCCA A53 Mini / Mini Vivaldi: Removing the Front Panel

LUCCA A53 / A53 Mini: Installing Wood Panels

LUCCA A53 / A53 Mini / Vivaldi / Mini Vivaldi: Side & Front Panel Alignment

LUCCA A53 / Mini / Vivaldi: Panel Removal

Panel Removal and Installation

LUCCA A53 Mini: Installing Drip Tray Drain

LUCCA A53 Mini: Installing a Pre-Infusion Chamber

Install Upgrades

LUCCA A53: Draining the Boilers

LUCCA A53 Espresso Machine: Setup Guide

LUCCA A53: User Manual

LUCCA A53: Guide to Error Codes

LUCCA A53 / La Spaziale Vivaldi: Fuse Housing Inspection and Replacement

LUCCA A53 / Vivaldi: Misaligned Pressure Gauge

LUCCA A53 / La Spaziale Vivaldi: Rotary Pump Pressure Adjustment

LUCCA A53 / Vivaldi: Fuse Inspection

LUCCA A53 / Vivaldi: Expansion Valve Adjustment and Seat Replacement

LUCCA A53 / Vivaldi: Accessing Main Computer (CPU)

LUCCA A53 / Vivaldi: 15 & 20 Amp Power Modes

LUCCA A53 / Vivaldi: Replacing Rotary Pump

General Maintenance

LUCCA A53 / Vivaldi: Cleaning the Flow Meter Gicleur

LUCCA A53 / Mini / Vivaldi: Cleaning Hot Water Tap Tubing

LUCCA A53 / Vivaldi: Cleaning Fill Solenoid

LUCCA A53 / Vivaldi: Hot Water Solenoid Disassembly

LUCCA A53 / A53 Mini / Vivaldi / Mini Vivaldi: Cleaning or Replacing Group Head Solenoid (2019-Present)

LUCCA A53 / A53 Mini / Vivaldi / Mini Vivaldi: Inspecting and Cleaning Group Head Passages