Table 18. IMM2 error messages (continued)
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v If an action step is preceded by “(Trained technician only),” that step must be performed only by a trained
technician.
80010202-0701xxxx Numeric sensor
Planar 3.3V going
low (lower critical)
has asserted.
Error A lower critical
sensor going low
has asserted.
(Trained technician only)
1. For the hot-swap power-supply
systems, replace Power Paddle
Card.
2. For the fixed power-supply systems,
replace the power supply.
3. Replace System board (see
“Removing the system board” on
page 428 and “Replacing the system
board” on page 430).
80010902-0701xxxx Numeric sensor
Planar 5V going high
(upper critical) has
asserted.
Error An upper critical
sensor going high
has asserted.
(Trained technician only)
1. For the hot-swap power-supply
systems, replace Power Paddle
Card.
2. For the fixed power-supply systems,
replace the power supply.
3. Replace System board (see
“Removing the system board” on
page 428 and “Replacing the system
board” on page 430).
80010202-0701xxxx Numeric sensor
Planar 5V going low
(lower critical) has
asserted.
Error A lower critical
sensor going low
has asserted.
(Trained technician only)
1. For the hot-swap power-supply
systems, replace Power Paddle
Card.
2. For the fixed power-supply systems,
replace the power supply.
3. Replace System board (see
“Removing the system board” on
page 428 and “Replacing the system
board” on page 430).
80010902-0701xxxx Numeric sensor
Planar 12V going
high (upper critical)
has asserted.
Error An upper critical
sensor going high
has asserted.
1. Check power supply n LED.
2. Remove the failing power supply.
3. (Trained technician only) Replace
the system board.
(n = power supply number)
Chapter 4. Troubleshooting 177
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