Malfunction Codes - CAIRE eQuinox PAOS 4000 Provider Technical Manual

Malfunction Codes

If a malfunction occurs in the eQuinox, the device will stop, the Red LED on the front panel will light and the buzzer will sound for 10 seconds
and then silence. The LCD will display one of the following Malfunction Codes:
Malfunction
Invalid RESET
I/O Port Failure
RAM Failure
FLASH Failure
EEPROM Failure
IPC Watchdog Timeout
Compressor Motor Temperature Sensor Failure
PCB Temperature Sensor Failure
No Power to Compressor
Compressor Motor Stalled
Battery Communication Failure
PSS failure
Boost Converter Failure
Compressor motor too hot
PCB too hot
IPC Failure
Breath Pressure Sensor Failure
Ultrasonic Failure
Product Temperature Sensor Failure
Loss of Product Tank Pressure
Purity Calibration Data Failure
Flow Calibration Data Failure
Breath Sensitivity Data Failure
Over Current Failure
Step 1: Remove all power sources; battery and external power. Wait 20 seconds. Reconnect power to the eQuinox. Turn the device to the ON
position. If resolved, continue use.
Step 2: If unresolved, call Technical Support for assistance.
Personal Ambulatory Oxygen System Provider Technical Manual
FAIL code
FAIL 80 Check for secure communication cables, Verify functionality of PM and CS PCB
FAIL 81 Check for secure communication cables, Verify functionality of PM and CS PCB
FAIL 82 Check for secure communication cables, Verify functionality of PM and CS PCB
FAIL 83 Check for secure communication cables, Verify functionality of PM and CS PCB
FAIL 84 Check for secure communication cables, Verify functionality of CS PCB
FAIL 90 Check for secure communication cables, Verify functionality of PM and CS PCB
Allow eQuinox to Cool for 30 Minutes. Check compressor fan functionality. Check to ensure vents are not
FAIL 91 obstructed. Verify functionality of the Compressor Assy. Check cable connections between the compressor
and the PM PCB
Allow eQuinox to cool for 30 Minutes. Verify functionality of PM fan. Check to ensure vents are not
FAIL 92
obstructed. Verify functionality of PM PCB
Check Compressor wires for damage. Verify functionality of PM PCB. Verify functionality of the Compressor
FAIL 93
Assy
Check Compressor wires for damage. Verify functionality of PM PCB. Verify functionality of the Compressor
FAIL 94
Assy
Verify functionality of the Battery Bridge PCB. Check Battery and Battery Bridge PCB for pin damage. Verify
FAIL 95
functionality of battery. Verify functionality of PM PCB
FAIL 96 Power Failure
FAIL 97 Verify Functionality of PM PCB
Allow eQuinox to Cool for 30 Minutes. Check compressor fan functionality. Check to ensure vents are not
FAIL 9A
obstructed. Verify functionality of the Compressor Assy.
Allow eQuinox to Cool for 30 Minutes. Check compressor fan functionality. Check to ensure vents are not
FAIL 9B
obstructed.
FAIL A0 Verify functionality of PM PCB
FAIL A2 Verify functionality of CS PCB
FAIL A3 Verify functionality of CS PCB. Check for water intrusion from humidifier
FAIL A4 Verify functionality of DB9 cable harness. Verify functionality of CS PCB
FAIL A5 Check for leaking, cracked HEPA filter or damaged tubing. Verify ATF motor is turning
FAIL A6 Check for leaking, cracked HEPA filter or damaged tubing. Verify functionality of CS PCB
FAIL A7 Verify functionality of Proportional Valve. Verify functionality of CS PCB
FAIL A8 Check for damaged tubing. Verify functionality of CS PCB
FAIL AB Check power supply for sufficient current
Table 10
Recommended Action
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