Invacare 6LXO2 Service Manual page 20

TROUBLESHOOTING GUIDE
T
R
SYMPTOM:
O
U
UNIT NOT OPERATING
B
ALARM: OFF
L
Internal Status Indicators:
E
RED: Off
S
GREEN: Off
CONTROL PANEL INDICATORS:
H
RED: Off
O
YELLOW: Off
O
GREEN: Off
T
Purity Switch setting at 73% or 85%.
I
N
UNIT NOT OPERATING,
G
Internal Status Indicators:
RED: Off
GREEN: Off
Control Panel Indicators:
RED: Off
YELLOW: Off
GREEN: Off
Power Switch ON. Continuous
audible alarm.
UNIT NOT OPERATING,
Internal Status Indicators:
RED: Three (3) Flashes
GREEN: One (1) Flash
(Integrated Circuit Board)
Control Panel Indicators:
RED: Off
YELLOW: Flashing
GREEN: On
NOTE: REFER TO THE REPAIR/REPLACEMENT GUIDE IN THIS MANUAL FOR PROPER
TROUBLESHOOTING GUIDE
PROBABLE CAUSE:
1. Purity Switch.
Defective.
2. Horn.
Disconnected.
1. Transformer Assembly.
a. Molex connector disconnected
from P.C. Board.
b. Faulty transformer assembly.
1. Internal repairs required.
REPLACEMENT OR ADJUSTMENT PROCEDURES
1. Replace P.C. Board. (PROCE-
2. Reattach horn connector to
1a.Reattach connector.
1b.Replace transformer assembly
1. Replace SensO2 circuit board
20
SOLUTION:
DURE 11). Unit may need
retiming after board replacement.
(PROCEDURE 18).
harness.
(PROCEDURE 12).
(PROCEDURE 11).