Sterilizers SUPREME - FUTURA - CLASSIC (17-22-28)
- TECHNICAL MANUAL
ALARMS / ERRORS / WARNINGS / TROUBLESHOOTING
CODE AND
MESSAGE ON THE
DISPLAY
H401
INCORRECT T/P
RATIO
CHECK LOAD
During the
process, PT1 value
is too high with
respect to Tsteam.
The value resulting
from the difference
between T and
Pconv is higher tan
2°C.
Discharge solenoid
valve EV1 does not
open properly.
Check EV1 slider/slider holder -
see sheet ST02 - MANIFOLD.
Firmware version not
updated.
Check/update autoclave FW
version - via APP easyaccess
The pressure
transducer is broken.
Replace the pressure transducer
- see sheet ST4-PRESSURE
SWITCH_MPX.
Check for a steam
leakage from door seal.
Thoroughly clean the door seal
and the steel door leaf.
Reset the alarm and repeat a
sterilization cycle.
Replace the door seal.
H402
TEMPERATURE
BEYOND
MAXIMUM LIMIT
CONTACT TECH.
SERVICE
During the
process, PT1 value
is too high
The temperature
detected by PT1
temperature
sensor is higher
than Tnom + 4°C.
Steam generator
clogging problem.
Generator maintenance - See
sheet ST01 – Steam generator.
Insufficient water
supply to the generator.
The steam generator
vibration pump does
not work properly.
Solenoid valve EV6
does not open properly.
Check/clean filling tank filter.
Check/replace vibration pump
water filter.
Check vibration pump.
Check EV6.
For the check, it can be useful to
activate the water pump and
EV6 by means of the
SERVICE/COMPONENT
TEST/OTHER COMPONENTS
menu, which allows to detect air
passage through the generator
to the chamber.
Replace vibration pump.
PT1 temperature
sensor is damaged.
Replace PT1 – see sheet ST5-
PT1.
Firmware version not
updated.
Check/update autoclave FW
version - see ST7-FW update.
Check for a steam
leakage from door seal.
Thoroughly clean the door seal
and the steel door leaf.
Reset the alarm and repeat a
sterilization cycle.
Replace the door seal.
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