5-67
becomes normal scores of
seconds later. The alarm of
power board communication
failure occurs.
discharge and reset. Then update the
power board software again.
2. If the problem persists, replace the
power board.
During the operation of the
anesthesia machine,
ventilation stops all of a
sudden but the display and
buttons work normally.
The monitor board or
valve is damaged.
Enter [
Maintenance
]
→
[
Factory
Maintenance >>
] . Enter the
required password to access the
[
Factory Maintenance
] menu. Enter
[
Diagnostic Test >>
]
→
[
Valves-Test Tool>>
] Test the status
of each valve and reference power
supply in the valves-test tool
window. If valve malfunction or
reference power supply error is
detected, return the valve or monitor
board to factory for repair.
The power board is
damaged.
Repair the power board.
The heater is burned.
Replace the heater.
The thermistor inside the
heater is damaged.
Replace the heater.
The heater malfunctions.
The cable gets loose.
Properly insert the heater-related
cable.
The system switch cable
falls off or other cable
gets loose.
Properly insert the system switch
cable or the loose cable.
The fuse of the mains
inlet is damaged.
Replace the fuse.
The power board software
is damaged.
Disconnect the AC power supply and
battery. Wait for 5 minutes to cause
the power board to fully discharge
and reset. Restart the machine. If the
machine works normally, it indicates
that the software failure is fixed. If
not, the problem is caused by
hardware failure.
The power board
hardware is faulty.
Return the power board to factory
for repair.
The anesthesia machine
cannot be started up.
The system switch is
ineffective or the screws
on the system switch get
loose.
Repair the system switch or tighten
the screws on the system switch.
Summary of Contents for WATO EX-55
Page 1: ...WATO EX 55 65 Anesthesia Machine Service Manual ...
Page 2: ......
Page 4: ...II FOR YOUR NOTES ...
Page 6: ...IV FOR YOUR NOTES ...
Page 12: ...6 FOR YOUR NOTES ...
Page 58: ...3 22 FOR YOUR NOTES ...
Page 242: ...6 54 6 4 1 Electrical Connections Electrical Circuit Diagram ...
Page 260: ...6 72 FOR YOUR NOTES ...
Page 261: ...7 1 7 Parts 7 1 Main Unit 7 1 1 Main Unit 7 1 1 1 Exploded View ...
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Page 322: ...P N 0621 20 78654 1 1 ...