XT Machine Technical Maintenance and Troubleshooting

This set of vocabulary flashcards covers technical specifications, troubleshooting indicators, and maintenance procedures for the XT machine based on the service manual transcript.

L630 HV

The specific type of outlet required for the power supply of the XT machine.

$$39{}^\circ \text{F}$$

The required temperature that the interior refrigeration of the machine must maintain.

$$85{}^\circ \text{F}$$

The maximum recommended ambient temperature for the operation of the machine.

Machine Clearance

The requirement of $4\,\text{inches}$ on all sides and $6\,\text{inches}$ above the machine for ventilation and maintenance.

$$190\text{--}240\,\text{volts}$$

The specific voltage range required for proper operation of the XT machine.

Multimeter

The tool used by facilities to verify the voltage of the wall receptacle.

Blue liquid leak

A visual indicator signaling a Clean-In-Place (CIP) cleaning failure.

PM Due

A warning message that appears approximately $24\text{--}48\,\text{hours}$ before software issues cause settings to be lost.

6812

The specific access code used to enter machine settings.

Limescale

A buildup commonly responsible for coffee dispensing blockages, particularly in regions like Florida, Texas, and Utah.

Espresso grounds

Coffee grounds that should ideally resemble the texture of sand.

Regular coffee grounds

Coffee grounds that should ideally resemble the texture of diamond crystal salt.

Bitter taste

An indicator that the coffee grind is too fine and/or the temperature is too high.

Sour taste

An indicator that the coffee grind is too coarse and/or the temperature is too low.

Box of rocks

A specific grinding sound that indicates the burrs are set too far apart.

Whining sound

A specific grinding sound that indicates the burrs are set too close together.

Water Filter Reset

A procedure performed by setting the service switch to 'Clean' and using code 6812 to prevent filter lockout errors.

$$10\,\text{seconds}$$

The duration the machine should be powered off after resetting the water filter counter.

$250\text{-cup}$ cleaning cycle

The point at which drink counts are incorrectly resetting due to software issues, rather than at midnight.