Covidien Puritan Bennett 700 Series, Service Manual

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Diagnostic codes
Puritan Bennett™ 700 Series Ventilator System Service Manual 10070389 Rev. A 6-5
6002 BIOT (technical alert --
MOTOR OVER TEMP) Motor temperature too high 1. Clean or replace main fan filter.
2. Check for proper operation of main
fan.
3. Replace motor/encoder.
4. Replace controller PCB.
6003 BIOT (technical alert --
CONTINUOUS HI PRES) HIGH PRESSURE alarm is active,
but circuit pressure has not
dropped below HIGH
PRESSURE setting. This points
to a failure to open the
exhalation valve. 1. Check patient; provide alternate
ventilation.
2. Make sure EXHAUST port is not
blocked.
3. Replace exhalation solenoid.
4. Replace pressure solenoid PCB.
5. Replace exhalation valve.
6004 BIOT (technical alert --
FAN FAILED ALERT) Fan filter occluded or fan not
operational
Temperature normalization 1. Make sure main fan is operating.
2. Make sure room temperature is not too
low. Make sure that ventilator has
warmed up and attained a steady-state
temperature (
after removing the
ventilator from its packaging).
3. Make sure ventilator lid is securely
closed and that the lid gasket is not
torn.
4. Make sure vents in unit are not
blocked.
5. Replace fan filter, as necessary.
6. Check that main fan/ventilator head
harness connection is secure.
7. Replace main fan.
8. Replace air flow thermistor assembly.
NOTE:
Error code 6004 can be caused by a fan that draws no current or by
insufficient air flow into the ventilator and across the air flow
thermistor. If the fan is operating, the cause of this error code is
insufficient air flow into the ventilator.
6006 BIOT (technical alert --
BAT NOT CHARGING) Battery voltage has not
increased during past hour 1. Check connections and charge of
batteries.
2. Replace applicable battery.
3. Replace BBU PCB.
6007 BIOT (technical alert --
SPEAKER FAILED) Main alarm speaker failed and
backup alarm sounds 1. Check wiring to speaker.
2. Replace speaker.
3. Replace pressure solenoid PCB.
Table 6-1: Diagnostic codes (continued)
Code Software Possible cause Corrective action