Coltene SciCan BRAVO G4, Technical & Service Manual

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Sterilizers Bravo G4
- TECHNICAL MANUAL
EN ERROR/WARNING-ALARM-HAZARD-SYSTEM ERROR
77
6.3. CODE “H” HAZARD
(**)
1 = OK (warning) - Tap OK on pop-up window.
2 = OK + door unlock / RESET - Keep OK pressed for 3 seconds on the pop-up window and the autoclave will start
the procedure to open the door in full safety. When the RESET key appears in the left area of the LCD, hold it
pressed for 3 seconds.
CODE AND MESSAGE
ON THE DISPLAY
DESCRIPTION
Possible causes /
Checks
Solution
ERROR
OUTPUT (**)
H150
PRESSURE SENSOR
OPEN CIRCUIT
CONTACT TECH.
SERVICE
MPX sensor open
circuit (chamber).
The pressure read
by the transducer
is lower than the
minimum pressure
(=-0.95 bar).
Transducer connection
wiring is
disconnected/damaged.
Check wiring and relevant
connection.
2
Transducer connection
pipe is
disconnected/damaged.
Check the transducer connection
pipe.
The transducer does
not work properly.
Replace the pressure transducer
- see sheet ST4 - PRESSURE
SWITCH_MPX.
H160
PRESSURE SENSOR
SHORT-CIRCUIT
CONTACT TECH.
SERVICE"
MPX sensor short
circuit (chamber).
The pressure read
by the transducer
is higher than the
maximum pressure
(=2.60 bar).
The pressure
transducer wiring is
damaged.
Check wiring and relevant
connection.
2
Pressure transducer
short circuit.
Check the transducer connection
pipe.
The pressure
transducer is damaged.
Replace the pressure transducer
- see sheet ST4 - PRESSURE
SWITCH_MPX.
H400
INCORRECT P/T
RATIO
CHECK LOAD
During the
process, Tsteam
value is too high
with respect to
PT1.
The value resulting
from the difference
between Pconv
and T is higher tan
2°C (35.6°F).
Discharge solenoid
valve EV1 does not
open properly.
Check EV1 slider/slider holder -
see sheet ST02 - MANIFOLD.
2
Firmware version not
updated.
Check/update autoclave FW
version
.
The pressure
transducer is broken.
Replace the pressure transducer
- see sheet ST4 - PRESSURE
SWITCH_MPX.
PT1 – chamber
temperature reading
problem.
Check that PT1 value is correctly
stored.
For the check, use the
SERVICE/PT1 CALIBRATION
menu.
Replace PT1 probe - see sheet
ST5-PT1.
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.
The board is damaged. Replace the PCB.