4-2
Troubleshooting
the field service representative diagnose and correct the problem,
try to gather as much inform about the situation as you can,
including:
• the diagnostic number and message,
• the operating situation when the diagnostic condition occurred
(such as rotor in use, speed, or load type), and
• any unusual environmental and/or operating conditions (such
as ambient temperature or voltage fluctuations).
Table 4-1. Diagnostic Message Chart
Continued—
Diagnostic Number/
Message
Problem
Result
Recommended Action
P1–
Power failure
occurred, see manual
Momentary power
failure: rotor does not
come to a complete
stop
Run continues when
power resumes
Press
[
CE
]
to clear message.
P2–
Power failure, see
manual
Power failure: rotor
speed drops to
<500 rpm
Run restarts automat-
ically when power
resumes
Press
[
CE
]
to clear message.
L1, L2, L5, L6, L11,
and L12–
Reclose door
Latches are not
operating properly
Error message
appears; run shuts
down with maximum
brake
Press down on the door and press
[
DOOR
]
. If you close the door repeatedly
and the problem continues, gently clean
the latch area with a lintless swab.
Be careful not to damage sensitive
electronics in the area.
WARNING: Do not put your fingers into
the latch openings.
Press
[
CE
]
to clear message.
C1–
Rotor temp exceeds
4C above set
Rotor temperature
exceeds tempera-
ture setting by more
than 4°C but less
than 8°C
Run continues
Press
[
CE
]
to clear message.
C2–
Rotor temp exceeds
8C above set
Rotor temperature
exceeds tempera-
ture setting by more
than 8°C
Run shuts down with
maximum brake
Call Beckman Coulter service.
C3–
Temp, call service
Cannot maintain
temperature
Run shuts down with
maximum brake
• Check the air filter and replace if dirty
(see Section 5, MAINTENANCE).
• Call Beckman Coulter service.
