Coltene SciCan BRAVO G4, Technical & Service Manual

Page: 77 / 116

Sterilizers Bravo G4
- TECHNICAL MANUAL
EN ERROR/WARNING-ALARM-HAZARD-SYSTEM ERROR
75
CODE AND
MESSAGE ON THE
DISPLAY
DESCRIPTION
Possible causes /
Checks
Solution
ERROR
OUTPUT (**)
A262
PD PRESSURE
UPSTROKE
TIMEOUT
CONTACT TECH.
SERVICE
Pressure pulse error
in the chamber during
drying.
Vacuum pulse during
drying not performed
within the timeout.
Clean or replace the
bacteriological filter (see
Maintenance Appendix in the user
manual).
2
Check for an air leakage
from one of the
MANIFOLD solenoid
valves.
Start solenoid valve EV5
check.
Check the valve overheating.
Loosen the fastening ring nut of the
coil.
Replace the corresponding coil.
Replace the slider.
Check the stability of the dental
surgery’s power voltage.
Insert a power conditioner.
Remove the other components fitted
on the line dedicated to the autoclave.
Check the inside of the solenoid
valves.
Clean any dirty valve (Loctite, chips,
filaments).
Replace the slider and slider holder.
Replace the MANIFOLD.
Vacuum pump
malfunction.
Check pump operation and
perform maintenance or replace it
if necessary.
A353
ATM1
DOWNSTROKE
TIMEOUT
CHECK LOAD
CHECK CHAMBER
FILTER
1st return from
pressure at 0.10 bar
not completed within
the timeout.
Chamber chamber drain
filter problem - component
check.
Check and clean the chamber
filter.
Follow the instructions in the User
Manual.
2
EV1 - EV3 discharge
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.
- MANIFOLD - see sheet ST02.
A356
ATM2
DOWNSTROKE
TIMEOUT
CHECK LOAD
CHECK CHAMBER
FILTER
2nd return from
pressure at 0.10 bar
not completed within
the timeout.
Chamber chamber drain
filter problem - component
check.
Check and clean the chamber
filter.
Follow the instructions in the User
Manual.
2
EV1 - EV3 discharge
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.
- MANIFOLD - see sheet ST02.
A360
SPD PRESSURE
DOWNSTROKE
TIMEOUT
CONTACT TECH.
SERVICE
Chamber
depressurisation not
completed within the
timeout.
Chamber
depressurisation not
completed within the
timeout.
Clean the chamber drain filter (see
Maintenance Appendix in the User
Manual).
2