FULLY-AUTOMATIC ESPRESSO COFFEE MACHINE - Wega
FULLY-AUTOMATIC ESPRESSO COFFEE MACHINE - Wega
FULLY-AUTOMATIC ESPRESSO COFFEE MACHINE - Wega
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display<br />
volum doser gr1 - 2<br />
does not count<br />
overtemperature<br />
sensor group i - 2<br />
cause remedy<br />
1. Coffee ground too fine<br />
2. Water flow obstructed somewhere<br />
along the hydraulic circuit (volumetric<br />
dosing device, gicleur group)<br />
3. Flowmeter is broken or unproperly<br />
connected (the LED on the flowmeter<br />
fails to flash during dispensing)<br />
1. Temperature probe failure<br />
2. Short circuit of probe connection<br />
cables<br />
3. Faulty relay on the driver board<br />
4. Wrong temperature setting<br />
1. Group temperature sensor is<br />
either faulty or the connection is<br />
interrupted<br />
51<br />
english<br />
1. Restore connection<br />
and/or change the<br />
temperature sensor if<br />
necessary<br />
2. Press the key<br />
Technical manual<br />
1. Increase coarseness with the ring nut<br />
2. Enter the “Actuator Test” in machine<br />
programming and find where the blockage<br />
is (group solenoid valve or motor pump).<br />
Eliminate blockage either by cleaning or<br />
changing the part.<br />
3. Position the connector correctly on the<br />
flowmeter and verify the state of the<br />
connecting cables. If necessary replace<br />
the flowmeter.<br />
1. Replace the<br />
temperature<br />
probe<br />
2. Check proper connection of probe<br />
3. Replace the driver board<br />
4. Reset the temperature<br />
TROUBLESHOOTING - chap.10
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