Comprehensive Troubleshooting Guide; Table 11-3. Troubleshooting Guide - Saros 9400R-SEQ Operators & Service Manual

Operator & Service Manual
Indications
During start up
or stabilization period
when a control panel
(flow) setting has
been changed:
1 At start up, All 3 light
are on (green, yellow,
& red)
2 At start up, 2 lights
are on (green & yel-
low)
3
At start up, 1 light
remains (green)
After Start Up condi-
tions:
4 Continuous mode:
Low O2: between 85
to 70%
* (yellow light is
flashing)
5 Continuous mode:
Low O2: between 70
and 50%
* (Red light is flash-
ing, alarm beeping)
6 Loss of Power
7 Flow Rate error
Yellow LED will be
flashing
8 Compressor too hot
(>115°F)

11.6 COMPREHENSIVE TROUBLESHOOTING GUIDE

Code Possible Cause
5 minutes before alert conditions will
sound or code
O4OO Device warming up - >70% O2
O8OO Device warming up - >85% O2
OOOO Device warmed up, Within spec 93
+/-3% O2
Front panel setting change—alerts
will be reset for 5 minute stabiliza-
tion.
O8OO * 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, malfunction-
ing
O4OO * ATF gear motor slow or not turning,
ATF has moisture.
* Compressor slow or not working
* PCB set not calibrated, malfunction-
ing
4OOO Power has been lost to the SAROS
(unit beeps for 2 sec, and switches to
attached battery - if present)
2OOO 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.
91OO Environment too hot, Compressor too
hot

Table 11-3. Troubleshooting Guide

Remedy
Alert condition will be silent until the warm up pe-
riod or stabilization period is over, 5 minutes.
Normal condition
Normal condition
Ready to use
Follow numerically until resolved.
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: SP9240-SEQ);
5) Replace PCB set (PN: 9710-SEQ).
1) Check gear motor on ATF is turning, replace ATF is
needed (PN: SP9729-SEQ);
2) Check Compressor is not labored, squeaking;
replace if not working (PN: SP9240-SEQ);
3) Replace PCB set (PN: 9710-SEQ).
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-SEQ or PN: 9727-SEQ);
4) replace External power connector (PN: 9766-SEQ)
5) Replace PCB set (PN: 9710-SEQ).
1) Find tubing blockage and remove;
2) if blockage is within SAROS device - remove tub-
ing and investigate filters.
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: SP9240-SEQ).
9735-SEQ H | 47