CAIRE SAROS 3000, Service Manual

Page: 25 / 58

MN260 B | 25
Service Manual
7.5 COMPREHENSIVE TROUBLESHOOTING GUIDE
Indications Code Possible Cause Remedy
During start up
or stabilization period
when a control panel
(flow) setting has
been changed:
5 minutes before alert conditions will
sound or code Alert condition will be silent until the warm up pe-
riod or stabilization period is over, 5 minutes.
2 At start up, 2 lights
are on (green & yel-
low) 0800 Device warming up - >85% O2 Normal condition
3 At start up, 1 light
remains (green) 0000 Device warmed up, Within spec 93
+/-3% O2 Ready to use
After Start Up condi-
tions: Front panel setting change—alerts
will be reset for 5 minute stabiliza-
tion. Follow numerically until resolved.
4
Continuous mode:
Low O2: below 85
* (yellow light is on)
0800 Low Flow for extended periods of
time, filters occluded.
ATF gear motor slow or not turning,
ATF has moisture.
Compressor slow or not working
PCB set not calibrated, malfunctioning 1) Clean or replace filters;
2) If device has been in storage, attempt to run for
24 hours continuously to bring up the purity;
3) Check gear motor on ATF is turning, replace ATF if
needed (PN: SP9729-SEQ);
4) Check Compressor is not labored, squeaking;
replace if not working (PN: SP9238-SEQ);
5) Replace PCB set (PN: SP9710V2-SEQ).
6
Loss of Power
4000
Power has been lost to the SAROS
(unit beeps for 2 sec, and switches to
attached battery - if present) 1) Check if the front panel power verification LED is
lit;
2) Check the power source for proper voltage, review
spec chart to details;
3) Check/replace External power supply for function-
ality (PN: 9726-1-SEQ or PN: 9727-SEQ);
4) replace External power connector (PN: 9766-SEQ)
5) Replace PCB set (PN: SP9710V2-SEQ).
7
Flow Rate error
Yellow LED will be
flashing 2000 A block to flow greater than 10% is
detected for more than 60 sec, unit
beeps and yellow light is on.
Unit will establish normal use after 30
seconds of unblocked patient circuit. 1) Find tubing blockage and remove;
2) if blockage is within SAROS device - remove tub-
ing and investigate filters.
8
Compressor too hot
9100 Environment too hot, Compressor too
hot 1) Allow device to cool;
2) Check the cooling fan, replace Compressor cooling
fan if not rotating smoothly or at all (PN: 9767-SEQ)
3) If after cooling, the Compressor is damaged or
squeaking, replace Compressor (PN: SP9238-SEQ).
9 Caution LED is on.
The buzzer beeps
once for 200ms. 9110 Compressor Temperature Sensor cable
connected to J402 on system board
may be damaged or loose.
The Compressor Temperature Sensor
is bad. 1) Remove and reconnect sensor cable.
2) Repair sensor cable.
3) Replace compressor.