M&V S.r.l. Minima, Owner'S Manual

Page: 19 / 24

© M&V S.r.l.
ACS Minima userguide version 1.6 April 19.doc
Page 18 of 21
Information Technology Solutions
M
INIMA OWNERS MANUAL
Other problems
In the event of any abnormal operation or problem with the display:
Switch the machine off and unplug it. Plug in and switch on again. If this does not fix the fault , check all the
settings in the advanced menu , in case the main board firmware has been accidentally returned to the board
manufacturers settings.
If a boiler fails to heat, the machine has 2 resettable limit stats:
Unplug machine and remove either upper or lower access panel to reset the relevant limit stat, by pressing the
little red button in the centre. These are on the top of both boilers. If the problem recurs, contact your dealer for
advice.
Abnormal sounds or leaks:
Contact your dealer for advice. Sometimes the repair may be very simple, e.g., a leaking high-pressure PTFE
pipe joint and the dealer can talk you through quickly fixing it. At other times it may be more serious and require
returning the machine for repair
Main Board Firmware - Accidental factory Reset
This can happen by accident or you may be asked to reset it. The electronics manufacturer has a system that
requires you to press and hold
both buttons on the display then switch the Minima on to access advanced mode
programming. Pressing just the right-hand button whilst switching the machine on will reset it to manufacturing
defaults, so it's easy to do by accident!
If this happens simply work through the advanced menu on the next page and check everything is as described,
change those value that are not the same as in the table.
Display Error Codes
x
“A1”: Brew Boiler temperature probe not connected or short circuit
x
“A2”: Brew Boiler temperature probe circuit break
x
“A3”: Service Boiler temperature probe not connected or short circuit
x
“A4”: Service Boiler temperature probe circuit break
x
“A7”: filling time out
The A7 error is a protective feature to protect the pump, or against flooding and will stop the pump after a certain
time. To reset this error, simply switch the machine off and on again. If it keeps happening, look for a kinked
blocked feed hose or other problem. If it keeps happening even though the pump only runs briefly, contact your
dealer for support.
It is possible an A7 will pop up once or twice during a refill after draining the service boiler, if it does simply switch
the machine off (wait 10 seconds) and switch on again.