Troubleshooting Repair Guide 0918
4
MACHINE REACTS TO VOLTAGE WHEN TURNED ON BUT
DOES NOT REACT FUNCTIONALLY:
1.
The machine receives voltage when turned ON, but nothing functions.
(LED are alight)
1a. Measure the voltage of the mains, it must be sufficient to run the machine.
Low voltage though an overlong extension cord or insufficient mains voltage
will cause the PCB to go into tilt with continued blinking and strange readouts
on the temperature display. Same or worse with over-voltage.
1b. The PCB could be faulty. Exchange the PCB and see if the new one fixes
the problem.
1c. If the machine uses a transformer to create a neutral and to deliver single
phase voltage (230V~) to the PCB and pumps, check the transformer and
substitute if faulty.
MACHINE BUILDS UP NO TEMPERATURE AND/OR PRESSURE:
1.
The pressure gauge MAP0027 shows no pressure.
1a. Make sure that the boiler ON switch is enabled and the green boiler LED is
blinking or steady ON (see picture 4) and the temperature display shows a
temperature almost equivalent to what is declared in the instruction manual.
Enable steam output on the hose and check if steam exits and if yes, then
exchange the faulty pressure gauge. Otherwise see below.
2b. Inspect the boiler safety thermostat, it may have been triggered. Try a reset or
exchange. (see picture 5)
ATTENTION:
The safety
thermostat, MAP0206, sets
off at around 210°C (410°F),
cutting the power supply
off. Causes can be boiler
pump and/or level sensor
failure or a failure of both
pressure-stats! Identify the
cause and exchange the
faulty parts and set the new
pressure-stats to the correct
setting (see table 1 ).
Pic. 4