Chapter 2 Troubleshooting
2.3 Level 2 FIP
2-23
FIP-1.12 Fan error (Fan alarm)
Procedure Check
Action
YES NO
1
- Initial check -
Are there errors such as use of parts in different
specifications, attachment error, damage,
transformation, dirt, or foreign object?
- Major check parts -
FAN (PL7.1.10), FAN ASSY (PL9.1.3), LVPS 230
(PL9.1.5), PWBA MCU XFABK(B) (PL9.1.25)
Replace and
reattach the parts.
To step 2
2
- FAN check -
Does the FAN or FAN ASSY rotate at power-on?
To step 4
- There is a tool.
To step 3
- There is no tool.
To step 4
3
- FAN check -
Does the FAN or FAN ASSY run normally?
Select [FAN MOTOR, HIGH SPEED TEST] or [FAN
MOTOR, STOP TEST] on the Diagnostic Mode Menu.
Replace the FAN
or FAN ASSY
To step 4
4
- FAN power check -
Is 24VDC applied to the J104-1PIN<=>J104-3PIN?
Is 24VDC applied to the J103-1PIN<=>J103-3PIN?
To step 5
Replace the
PWBA MCU
XFABK(B)
5
- FAN ALARM signal check -
Is the J104-2PIN<=>J104-3PIN fixed to 0VDC?
Is the J103-2PIN<=>J103-3PIN fixed to 0VDC?
Replace the FAN
Replace the
PWBA MCU
XFABK(B)
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