SciCan Bravo User manual

Bravo
Troubleshooting Guide

Table of Contents
Table of Contents 2
Bravo Alarm Code by Alarm Code Indication 3
Alarm Codes A022, A023, A024, E020 & E021 Door Locking Problems 4-9
Alarm Code E010 10
Alarm Code E020 & E021 11-12
Alarm Code A032 Leveler Problem 13
Alarm Code A040 & E041 Automatic Water Filling Problem 14-17
Alarm Codes A101, A102, A103 & A104 PTX Broken 18
Alarm Codes A111, A112, A113 & A114 PTX Short-circuit 19
Alarm Code A200 Heating Problem 20
Alarm Code A250 PV1 Timeout 21
Alarm Code A251 ATM1 Timeout 22
Alarm Code A252 PP1 Timeout 23
Alarm Code A253 PV2 Timeout 24
Alarm Code A254 ATM2 Timeout 25
Alarm Code A255 PP2 Timeout 26
Alarm Code A256 PV3 Timeout 27
Alarm Code A257 ATM3 Timeout 28
Alarm Code A258 PPP Timeout 29
Alarm Code A259 Process Timeout 30
Alarm Code A260 PPD Timeout 31
Alarm Code E000 Black-Out 32-33
Bravo Fuses 34
Alarm Code E030 Manual Filling Water Level Minimum 35
Alarm Code E031 Exhaust Level Max 36
Alarm Codes E900, E901 & E902 Vacuum Test Failed 37
Alarm Code E999 Manual Cycle Interruption 38
Alarm Codes H150 MPX Broken & H160 MPX Short-circuit 39
Alarm Code H400 P/T Problem, H401 T/P Problem & H402 Temperature Over Limit 40
Alarm Codes H403 Temperature Under Limit, H404 PT1 Fluctuating & H405 P Over Limit 41
Alarm Code H406 P Under Limit & H410 Timer Problem 42
Alarm Codes H990 Over Pressure, H991 Overheating PT1, H992 Overheating PT2 &
H993 Overheating PT3 43
Bravo Forced Ventilation 44
Bravo Vacuum Timeouts or Will Not Vent A250, A253, A256 & A260 Troubleshooting 45
Bravo 17 Vacuum Pump H5P5 Rebuild Instructions 46-48
Bravo 17V & 21V Vacuum Pump EVO10 Rebuild Instructions 49-58
Bravo Chamber Will Not Pressurize A251, A252, A254, A255, A257, A258 & A259 59-63
Bravo Door Gasket Replacement 64
Bravo Door Plate Adjustment 65
Bravo Entering Setup Mode & Disabling Password 66
Bravo Drying Time Adjustment 67-70
Bravo Continuous Cycles 71-73
Bravo Maintenance & Display Warning Messages 74-77
Bravo Distilled Water Reservoir Drain Kit Installation Instructions 78-79
Bravo Upgrade Kit Installation Instructions 80-85
Bravo Valves & Component Resistance Readings 86
2

Bravo Alarm Code by Alarm Indication
Alarm Indication Code Alarm Description
ATM1 Timeout A251 1st rise to ambient pressure not reached within timeout
ATM2 Timeout A254 2nd rise to ambient pressure not reached within timeout
ATM3 Timeout A257 3rd rise to ambient pressure not reached within timeout
Black-Out E000 Blackout (loss of power)
Door Locked E021 Exceeded timeout for activating door locking system (opening)
Door Open E010 Door open
Door Unlocked E020 Exceeded timeout for activating door locking system (closing)
Exhaust Max E031 Water in the drain tank at maximum (Max) level
Filling Problem A040 Failure to fill the clear water tank (automatic filling)
Filling Problem E041 Filling the tank to frequently or external water source out of water
(automatic filling)
Heating Problem A200 Pre-heating not performed within the timeout (sterilization chamber
heating problem)
Level Problem A032 Sensor-level problem
Locking Problem A022 System door lock microswitches failed (Off-Off)
Locking Problem A023 System door lock microswitches failed (On-On)
Locking Problem A024 System door lock microswitches failed (On-Off)
Manual Stop E999 Manual cycle interruption
MPX Broken H150 MPX pressure sensor broken
MPX Shout Circuit H160 MPX pressure sensor short-circuited/not connected
Overheating PT1 H991 Overheating (sterilization chamber PT1)
Overheating PT2 H992 Overheating (steam generator PT2)
Overheating PT3 H993 Overheating (band heating element PT3)
Overpressure H990 Excessive pressure (sterilization chamber, MPX)
P Over Limit H405 Pressure above Max limit (Phase Process)
P Under Limit H406 Pressure below Min limit (Phase Process)
PPD Timeout A260 Chamber depressurization not completed within timeout
PPP Timeout A258 3rd pressure pulse not reached within timeout
Process Timeout A259 Phase of Process not started within timeout
P/T Problem H400 Ratio Pconv/T not balanced (Pconv>T) (Phase Process)
PT1 Broken A101 PT1 broken (sterilization chamber)
PT1 Fluctuating H404 Temperature fluctuating over the limit (Phase Process)
PT2 Broken A102 PT2 broken (steam generator)
PT3 Broken A103 PT3 broken (sterilization chamber heating element)
PT4 Broken A104 PT4 broken (sterilization chamber wall)
PT1 Short Circuit A111 PT1 short-circuited (sterilization chamber)
PT2 Short Circuit A112 PT2 short-circuited (steam generator)
PT3 Short Circuit A113 PT3 short-circuited (sterilization chamber heating element)
PT4 Short Circuit A114 PT4 short-circuited (sterilization chamber wall)
PV1 Timeout A250 1st vacuum pulse not reached within timeout
PP1 Timeout A252 1st pressure pulse not reached within timeout
PV2 Timeout A253 2nd vacuum pulse not reached within timeout
PP2 Timeout A255 2nd pressure pulse not reached within timeout
PV3 Timeout A256 3rd vacuum pulse not reached within timeout
Test Failed E900 Vacuum Test failed (during the leakage phase)
Test Failed E901 Vacuum Test failed (during the waiting phase)
Test Failed E902 Vacuum Test failed (vacuum pulse timeout exceeded)
Timer Problem H410 Wrong maintenance time (Phase Process)
T Over Limit H402 Temperature above Max limit (Phase Process)
T/P Problem H401 Ratio T/Pconv not balanced (T>Pconv ) (Phase Process)
T Under Limit H403 Temperature below Min limit (Phase Process)
Water Min E030 Water in the fill tank at minimum (Min) level
3

Door Locking Error Codes
A022, A023, A024, E020 & E021
When the door motor is in the open position the lower micro switch is activated and should read open and
the roller micro switch is deactivated and should read closed.
Bravo Error A022
Locking Problem
(Both door motor switches activated)
Failure of the micro switches (OFF-OFF), during the initial self test the two micro switches are ON.
Reset door motor and test door motor.
Check fuse F4 (1.25A 250V) on Gam PCB.
Check door micro switches and wiring.
Reset red button on Troll PCB
Bravo Error A023
Locking Problem
(Door motor between switches, neither switch is activated)
Failure of the micro switches (ON-ON), during the initial self test the two micro switches are OFF.
Blackout during opening
Reset door motor and test door motor.
Check fuse F4 (1.25A 250V) on Gam PCB.
Check door micro switches and wiring.
Reset red button on Troll PCB
Bravo Error A024
Locking Problem
(Door in closed position)
Failure of micro switches (ON-OFF), during the initial self test the closing micro switch is ON and the opening
micro switch is OFF. Sterilizer turned OFF before completing the safety procedure.
Reset door motor and test door motor.
Check fuse F4 (1.25A 20V) on Gam PCB.
Check door micro switches and wiring.
Reset red button on Troll PCB
Bravo Error E020
Door Unlocked
When a cycle was started the door exceeded the timeout for the operation of the door locking mechanism
(closing) 2.5 seconds.
Go to the Service menu (service code ++ -- ++ --), device test, manual, locking device. Select the locking device
then activate the door motor and check if the door hook is closing and opening. If the door motor does not
operate check fuse F4 on the Bravo Gam PCB and check the red reset button on the Troll PCB. Check the
Pressure Switch you should have continuity between the two white wires.
4

Bravo Error E021
Door Locked
At the end of the cycle the door exceeded the timeout for the operation of the door locking mechanism
(opening) 2.5 seconds.
Go to the Service menu (service code ++ -- ++ --), device test, manual, locking device. Select the locking device
then activate the door motor and check if the door hook is closing and opening. If the door motor does not
operate check fuse F4 on the Bravo Gam PCB and check the red reset button on the Troll PCB. Check the
Pressure Switch you should have continuity between the two white wires.
Bravo Door Switches
Door Approach Micro switch is a normally open switch.
Hook Micro switches are normally closed switches.
Hook Micro switch
#43300010000
Hook Micro switch
#43300080000
GAM PCB
Troll PCB
Fuse F4
Red Reset Button
Pressure Switch
Door Micro switch
#43300010000
5

Bravo Door Switches Electrical Connections
GAM Board Troll Board
Bravo Door Motor Reset for Gam PCB
Remove the cover, and then remove jumper X21 located above the battery.
Push and hold the hidden key while turning the power ON. The message “Locking Device will appear on the
LCD. Release the hidden key and press the stop/start key to reset the door locking mechanism. Open the door
and press the arrow up key to exit. Turn the Bravo OFF and reinstall X21.
White
Brown
Red
Normally
Closed
Normally
Closed
Normally
Open
Normally
Open
Normally
Closed
Normally
Closed
Black
Blue
Red
Brown
White
Black
Blue
Hidden Key
Stop/Start Key
Arrow Up Key
X21 Jumper
6

Bravo Door Motor Reset for Troll PCB
The cover does not need to be removed. Push and hold the hidden key while turning the power ON. The
message “Locking Device will appear on the LCD. Release the hidden key and press the stop/start key to reset
the door locking mechanism. Open the door and press the arrow up key to exit. If the door overload function
has been triggered, there is no more beeping sound when pressing the keypad remove the cover and reset the
red button on the PCB.
Bravo Door Motor Troubleshooting
The Bravo Door Motor is a DC motor. The voltage to the motor should read 24 -29 VDC. If replacing the door
motor the white wire must be connected to the terminal with the red or blue dot to the left of the label.
If there is no voltage to the door motor bypass the pressure switch. Remove the two white wires and connect
them together. If you now have voltage to the door motor the pressure switch is defective.
Red Dot or Blue Dot
Hidden Key
Hidden Key
Stop/Start Key
Arrow Up Key
7

Bravo Door Micro switch Wiring Troll PCB
Bravo Door Motor Wiring Troll PCB
Door Motor reads approx. 120 Ω
Blue & Black wires to Door
Closed Micro switch
White wire common to open & closed Door Hook
Micro switches.
Brown wire goes to door open Hook Micro switch
Red wire goes to door closed Hook Micro switch
Door Closed
Hook Micro switch
Door Open
Hook Micro switch
Door Open Micro switch
Black wire to door motor
White wire to pressure switch
8

Bravo Door Motor Hook & Switch Assembly
Item #
Description
Part #
Comments
1
Door Roller Switch
43300080000
The roller switch has normally closed contacts that will open when the switch is
activated.
2
Door Closing Hook
(upper hook)
C0BP0590000
This hook (upper) locks the door closed and activates the door roller switch when
the door motor is in the closed position.
3
Door Closing Hook
(lower hook)
C0BP0590000
This hook (lower) locks the door closed and activates the door open hook switch
when the door motor is in the open position.
4
Door Switch
43300010000
The door switch has normally open contacts and will close when the door is
manually pushed closed.
5
Door Position Pin
251000003K0
When manually closing door if door does not stay closed or is too hard to close
check door position adjustment.
6
Door Motor Shaft
Top of door motor shaft. If door motor will not function (no power) and door
must be opened try turning the shaft counterclockwise using a large screwdriver.
7
Door Hook Switch
Open
43300010000
The door hook switch open has normally closed contacts that will open when the
switch is activated.
1
2
3
4
5
6
7
9

Bravo Error E010
Door Open
When a cycle is started the door must be closed and the flashing key icon should appear on the display. If no
flashing key icon appears check the Door Microswitch, it is normally open and should be closed when the door
is closed. Manually activate the switch and see if it closes. If door switch closes when manually activated but
not when door is closed check that the switch is firmly attached to the mounting plate and has not come
loose. Adjust door switch actuator.
To access the door switch actuator adjustment, remove the 5 screws securing the door facia to the door and
remove the door facia. Loosen the door switch actuator locking nut and adjust actuator using a 3mm Allen
wrench. If the door switch actuates when the door is closed but the door is pushed back open when the door
motor closes adjust the actuator out so the door must close further for the door switch to close.
5 Door Facia Screws
Door Switch
Actuator
Adjustment
Door Switch Actuator
Door Microswitch
Part #43300010000
10

Bravo Error E020
Door Unlocked
When a cycle was started the door exceeded the timeout for the operation of the door locking mechanism
(closing) 2.5 seconds.
Go to the Service menu (service code ++ -- ++ --), device test, manual, locking device. Select the locking device
then activate the door motor and check if the door hook is closing and opening. If the door motor does not
operate check fuse F4 on the Bravo Gam PCB and check the red reset button on the Troll PCB. Check the
Pressure Switch you should have continuity between the two white wires.
Bravo Error E021
Door Locked
At the end of the cycle the door exceeded the timeout for the operation of the door locking mechanism
(opening) 2.5 seconds.
Go to the Service menu (service code ++ -- ++ --), device test, manual, locking device. Select the locking device
then activate the door motor and check if the door hook is closing and opening. If the door motor does not
operate check fuse F4 on the Bravo Gam PCB and check the red reset button on the Troll PCB. Check the
Pressure Switch you should have continuity between the two white wires.
Red Reset Button
Pressure Switch
Fuse F4
GAM PCB
Troll PCB
11

Bravo Door Positioner Adjustment
1. Remove the covers (left, upper & right).
2. Open and close the door to check its operation.
3. In case the door does not remain closed (no click
at the stroke end), loosen the nut (1) and turn the
positioner (2) clockwise.
4. In case of resistance on closing/opening the door,
loosen the nut and turn the positioner
counterclockwise.
5. Tighten the nut.
6. Perform a sterilization cycle.
12

Bravo Error A032
Level Problem
Error A032 – Level Problem
Problem with the water level floats. Lighting of both Min & Max level LED’s.
1. Check the float switch wiring and plugs.
2. Check the floats.
3. Check that Bravo is not plugged into a plug strip.
4. Check receptacle with a ground tester plug.
The Bravo sterilizers have three float switches. Two of them are located in the clean water reservoir and one is
located in the used water reservoir. The switches in the clean water reservoir are visible from the front of the
Bravo and the used water reservoir switch from the rear of the Bravo.
The used water reservoir float is wire number 1
and connects to terminal SS+ on the PCB. It is a
normally closed switch.
The clean water reservoir MIN float is wire number
2 and connects to terminal SC–on the PCB. It is a
normally open switch.
The clean water reservoir MAX float is wire number
3 and connects to terminal SC+ on the PCB. It is a
normally closed switch.
Clean Water Level Sensor Min
Part #43200050000
Clean Water Level Sensor Max
Part #43200050000
Used Water Level Sensor Max
Part #43200060000
PCB terminals SS+, SC– & SC+ are located on
the top left side of the PCB.
13

Bravo Error A040 & E041
Filling Problem Alarm
Error A040 – Filling Problem Alarm
Failure to automatically fill the Bravo sterilizer from the external water tank, the MIN level signaling is
not turned OFF within 2 minutes from the start command of the automatic filling.
Note: If Bravo is a new installation or was completely drained you may need to turn the Bravo OFF
and back ON to allow the unit to automatically fill twice to get sufficient water to activate the MIN
level switch.
1. Check for water in the external filling tank.
2. Check for a kinked tubing from the external filling tank to the Bravo sterilizer.
3. Check that the valve on the external filling tank is open.
4. Check water filter is not clogged or cracked. If the water filter is cracked the pump may be louder
than normal when running.
5. Check the auxiliary pump is providing water to the reservoir. Pump is located in rear of Bravo
mounted vertically.
6. Prime Auxiliary Water Pump
7. Disassemble and clean Auxiliary Pump
Error E041 – Filling Problem
In automatic fill mode unit is filling too frequently. Two automatic fills every two cycles.
1. Check automatic fill bottle for water.
2. Check tubing from automatic fill bottle to back of unit for kinks.
3. Check water filter on input of Auxiliary Pump.
4. Check Auxiliary Pump.
Auxiliary Pump Priming Procedure
1/4" Tubing
Basting Syringe
14

When error code A040 appears the auxiliary pump is not pulling water into the clean water reservoir. To
prime the auxiliary pump turn the unit OFF. Go to the rear of the Bravo and remove the tube coming from the
external clean water reservoir. Connect a short piece of 1/4" tubing to the auxiliary pump inlet elbow.
Fill a syringe with water and connect the syringe to the 1/4" tubing.
Turn the Bravo on and when the check-up is complete enter the Setup Mode.
Entering Setup Mode
To enter the setup mode press and hold the first key on the left for several seconds until the display
shows Bravo Setup. If the display asks for a password, see instructions to disable password.
Press the first key on the right to continue.
Auxiliary Pump
Inlet Elbow
15

Press the second key on the left to select Service. Press the first key on the right to continue.
A service code is required to enter the Service Menu. Press ++ -- ++ -- press the first key on the right to
continue.
- Key + Key
+ + – – + + – –
Device Test will appear on the top line of the display. Press the first key on the right to continue.
Automatic Test will appear on the top line of the display. Press the second key on the left to select Manual
Test. Press the first key on the right to continue.
Locking Device will appear on the top line of the display. Press the second key on the left to select the
Auxiliary Pump. Press the first key on the right to continue. Press and hold the first key on the right
while pressing the plunger on the syringe connected to the rear of the Bravo. If the syringe runs out of water
release the first key on the right and refill the syringe. When the pump is operating properly the syringe
plunger will move into the syringe on its own or with very little pressure. Reconnect the automatic fill bottle
and hold in the first key on the right and verify that water is entering the Bravo from the bottle. To exit
setup press and release the first key on the left repeatedly until the display shows Exit Setup or Setup
Completely. Press the first key on the right to return to the Standby screen.
16

Bravo Water Pump disassembly for cleaning and inspection
Remove wires from pump and solenoid coils.
Remove pump inlet and outlet tubing.
Remove two screws that hold shaft to pump coil. Hold white shaft with one hand and white mounting piece
with screws with the other hand. Push pump white shaft in slightly and turn counterclockwise. Carefully
disassemble pump. Reverse procedure to reassemble.
17

Bravo Error A101, A102, A103 & A104
PTX Broken
Error A101 – PT1 Broken (Chamber Thermocouple)
The temperature detected by PT1 is higher than 250°C.
1. PT1 is broken should read approximately 1056Ω connected and 1086Ω disconnected.
2. Check the temperature value on the display.
Error A102 – PT2 Broken (Steam Generator Thermocouple)
The temperature detected by PT2 is higher than 250°C.
1. PT2 is broken should read approximately 1056Ω connected and 1086Ω disconnected.
2. Check water pump not feeding water to steam generator.
3. Steam Generator clogged.
4. Check PT2 temperature by holding in hidden key after unit is turned ON.
Error A103 – PT3 Broken (Chamber Heating Thermocouple)
The temperature detected by PT3 is higher than 250°C.
1. PT3 is broken should read approximately 1056Ω connected and 1086Ω disconnected.
2. Check the PT3 temperature by holding in hidden key after unit is turned ON.
Error A104 – PT4 Broken (Chamber Wall Thermocouple)
The temperature detected by PT4 is higher than 250°C.
1. PT4 is broken should read approximately 1056Ω connected and 1086Ω disconnected.
2. Check the PT4 temperature by holding in hidden key after unit is turned ON.
Hidden Key
18

Bravo Error A111, A112, A113 & A114
PTX Short-circuit
Error A111 – PT1 Short-circuit (Chamber Thermocouple)
Short-circuit in the PT1 probe. PT1 is reading a temperature value lower than 1°C.
1. Check the temperature value on the display.
2. If just being installed make sure unit was not in a cold truck overnight.
3. PT1 is short-circuited should read approximately 1056Ω connected and 1086Ω disconnected.
Error A112 – PT2 Short-circuit (Steam Generator Thermocouple)
Short-circuit in the PT2 probe. PT2 is reading a temperature value lower than 1°C.
1. Check PT2 temperature by holding in hidden key after unit is turned ON.
2. If just being installed make sure unit was not in a cold truck overnight.
3. PT2 is short-circuited should read approximately 1056Ω connected and 1086Ω disconnected.
Error A113 – PT3 Short-circuit (Chamber Heating Thermocouple)
Short-circuit in the PT3 probe. PT3 is reading a temperature value lower than 1°C.
1. Check PT3 temperature by holding in hidden key after unit is turned ON.
2. If just being installed make sure unit was not in a cold truck overnight.
3. PT3 is short-circuited should read approximately 1056Ω connected and 1086Ω disconnected.
Error A114 – PT4 Broken (Chamber Wall Thermocouple)
Short-circuit in the PT4 probe. PT4 is reading a temperature value lower than 1°C.
1. Check PT4 temperature by holding in hidden key after unit is turned ON.
2. If just being installed make sure unit was not in a cold truck overnight.
3. PT4 is short-circuited should read approximately 1056Ω connected and 1086Ω disconnected.
Hidden Key
19

Troubleshooting Bravo Error A200
Error A200 – Heating Problem
Preheating phase not performed within the preset time. Pre-vacuum phase PV1 not start within 30
minutes from the cycle start.
1. Check the steam generator safety thermostat.
2. Check the band heating element safety thermostat.
Bravo Safety Thermostats
Remove cap and depress button. If you hear a click the thermostat was tripped. If there is no click, the
thermostat was not tripped.
Steam Generator
Thermostat
Band Heater
Thermostat
Press to Reset
20