Sterilizers SUPREME - FUTURA - CLASSIC (17-22-28)
- TECHNICAL MANUAL
ALARMS / ERRORS / WARNINGS / TROUBLESHOOTING
CODE AND
MESSAGE ON
THE DISPLAY
A253
2PV TIMEOUT
CHECK LOAD
CHECK CHAMBER
FILTER
2
st
vacuum pulse
not achieved within
timeout
Vacuum pump
activation problem -
component check
Detect the vacuum pump start.
For the check, it can be useful to
activate the vacuum pump by
means of the
SERVICE/COMPONENT
TEST/OTHER COMPONENTS -
SOLENOID VALVES menu, which
allows to detect air suction from
the chamber.
Detect pump supply voltage.
Replace the vacuum pump.
EV1 - EV3 discharge
solenoid valve problem
- component check
EV4 exchange
solenoid valve problem
- component check
Check:
- EV1 correct opening, not
powered
- correct power supply and
opening of EV3
- solenoid valve seat and slider of
EV1 and EV3
- correct power supply of EV4,
with direct discharge/vacuum
pump connection exchange
- MANIFOLD - see sheet ST02
Heat exchanger
problem - device check
Autoclave positioning
problem.
Check:
- that exchanger grille and blades
are clean
- correct activation of cooling fans
- rear space for hot air evacuation
- that the air suction filter located
under the autoclave is clean
- autoclave positioning on the
resting surface, to ensure a
correct inclination of the
chamber towards the bottom