H E Y E R P a s i t h e c
86 / 106 HEYER Pasithec, Operator’s manual Rev. 0.2 Draft - 12/09
9.3 Troubleshooting
Symptom Possible Cause Recommended Action
APL valve is on Turn APL valve to off
Canister is not sealed well Reinstall or remove the natrium
calcareousness grains at the joint
Corrugated tubing is broken or the
connector is loose
Replace or reinstall
Breathing System
leak
Valves loose Tighten them
Excessive pressure
caused by manual
ventilation
APL valve is adjusted incorrectly Adjust it properly
APL valve doesn’t
work normally
APL valve failure Please contact eligible service
representative.
The AC indicator
has no power, and
ventilator does not
work
Power supply cable is unplugged
Power switch is off
Fuse burned out
Plug in power supply cable
Turn on power switch
Replace with a new one
Ventilator stops
operating suddenly,
indicator light turns
off, and alarm
sounds
Power supply is interrupted Use manual ventilation
Maximum pressure
alarm sounds
continuously
Breathing System is occluded
Patient’s respiratory tract is occluded
Maximum pressure setting is too low
Ventilator parameters changed
Check and adjust Breathing System
Check the patient
Readjust the alarm setting
Recalculate the ventilator parameter
Minimum pressure
alarm sounds
continuously
Breathing System leaked
Alarm settings are too high
Patient’s compliance changed
Pressure sampling pipe is disconnected
or broken
Check the pipeline for leak
Reset the alarm settings
Check the patient
Check the pressure sampling pipe
No indication from
the airway pressure
gauge
Pressure sampling pipe is disconnected
Gas supply exhausted
Reconnect the pressure sampling
pipe
Replace the gas supply
Tidal volume
readings do not
display normally
Flow sensor is disconnected
The sealing ring of bellows base is
broken
Bellows base is broken
Reconnect the flow sensor
Check the bellows and replace the
broken parts, then reassemble it and
carry out testing procedure
according to section 6.2.5
The folding gasbag
is inflated
excessively
Gas scavenging port is occluded
Malfunctioning waste gas scavenging
system created excessive resistance or
vacuum
Remove the occlusion
Repair waste gas scavenging
system