IBM i 830 Repair Manual page 116

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Reference Code Description/Action Perform all actions before exchanging Failing Items
6C24 Disk Unit K21 regulator fault
A fault detection failure occurred for the regulator that powers disk unit
K21.
6C25 Disk Unit K22 regulator fault
A fault detection failure occurred for the regulator that powers disk unit
K22.
6C26 Disk Unit K23 regulator fault
A fault detection failure occurred for the regulator that powers disk unit
K23.
6C27 Disk Unit K24 regulator fault
A fault detection failure occurred for the regulator that powers disk unit
K24.
6C28 Disk Unit K25 regulator fault
A fault detection failure occurred for the regulator that powers disk unit
K25.
6C29 Disk Unit K26 regulator fault
A fault detection failure occurred for the regulator that powers disk unit
K26.
6C2A Disk Unit K27 regulator fault
A fault detection failure occurred for the regulator that powers disk unit
K27.
6C2B Disk Unit K28 regulator fault
A fault detection failure occurred for the regulator that powers disk unit
K28.
6C2C Disk Unit K29 regulator fault
A fault detection failure occurred for the regulator that powers disk unit
K29.
6C2D Disk Unit K30 regulator fault
A fault detection failure occurred for the regulator that powers disk unit
K30.
6C2E Disk Unit K31 regulator fault
A fault detection failure occurred for the regulator that powers disk unit
K31.
6C2F Disk Unit K32 regulator fault
A fault detection failure occurred for the regulator that powers disk unit
K32.
7000 to 7004 Air Moving Device Fault
A problem was detected with an Air Moving Device which can be caused
by an Air Moving Device not being installed or operating at the wrong
speed.
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iSeries Model 830, 840, SB2, and SB3 Problem Analysis, Repair and Parts V5R1
Failing Item
DISKTRY
BKSPCN
DISKTRY
BKSPCN
DISKTRY
BKSPCN
DISKTRY
BKSPCN
DISKTRY
BKSPCN
DISKTRY
BKSPCN
DISKTRY
BKSPCN
DISKTRY
BKSPCN
DISKTRY
BKSPCN
DISKTRY
BKSPCN
DISKTRY
BKSPCN
DISKTRY
BKSPCN
AIRMOVR
BKSPCN