La Marzocco SWIFT EPSB, Troubleshooting Manual, Page: 25 / 32

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10. Troubleshooting Guide (* Items are for Technicians)
WARNING Technician Tasks only to be completed by skilled service personnel
Pushing start buttons and NOTHING happens.
-Check that the electrical plug is fully inserted
-Switch the on/off switch to the on position (the light should be lit)
*
Check fuses
Pushing the start button and the LIGHTS FLASH.
-The portafilter is not fully engaged - The portafilter is already full - The tamper is stuck in the full or
up position (see tamper cleaning instructions) - The safety timer has run out due to an empty bean
hopper, closed bean gate, or a plugged bean hopper chute.
*safety micro-switch is faulty *safety micro-switch rod is not contacting the switch properly
Grind TIME OUT is reached before basket is full.
-Check that the bean hopper gate is fully open - Grind coarseness may be too fine - Check
passage below bean hopper for obstructions
*Adjust grind time reostat
One GRINDING MOTOR does not run (serial numbers 0-655)
-Check for blown fuse (see manual under fuse replacement) -If a grinder motor fuse is blown
replace it with a 10 amp GDC fuse. Before starting the grinder motor remove the bean hopper (see
manual) and ensure that the motor spins freely. If it does not spin freely, follow the burr chamber
cleaning instructions and look for foreign objects: nail, paper clip, rock, penny, etc.
One GRINDING MOTOR does not run (serial numbers after 656)
-Press the reset button that corresponds with the motor that does not run. If the reset button pops
out again, turn the grin
d adjust knob 4 rotations forward in faster pour direction, insert the clean out rod (see manual)
remove the clean out rod, and restart the grinder. -If the reset button pops out again, remove the
bean hopper (see manual) and ensure that the motor spins freely. If it does not spin freely, follow
the burr chamber cleaning instructions and look for foreign objects: nail, paper clip, rock, penny,
etc. -Do not attempt to reset the breaker more than twice as this action may overheat and damage
the triac on the main power board.
*Swap the power leads between the two motors to troubleshoot motor and triac.
Shot gushes out at first and then slows down
-Adjust finish height of impeller
Inconsistent shot times
-Adjust finish height of impeller. Change worn burrs