Revision:1.0(2023-01-12)
347
Date "Time" "Errocode": System Monitor: Fan alert! [XXX], Current speed: [VVV] rpm, Lower Limit
speed: [LLL] rpm.
Involved FRU
Main Unit Dual Fans assembly
Severity
Maintenance as soon as possible
Handling Level
Handle the error yourself.
Error Mechanism
The system detects that the speed the main unit fan FAN2 is lower than the standard value.
Possible Cause
1. The fan is blocked due to sundries.
2. The fan is faulty.
Resolve Path
Check whether there are sundries around the fan and clean and maintain the fan. If the error
persists, replace the main unit fan assembly.
Solution
1. Remove the main unit fan assembly and clean and maintain the fan.
2. If the fault persists after cleaning, replace the Main Unit Dual Fans assembly. For details, refer
to 7.17.2
Disassembly and Assembly.
88..22..44..44 F1004: System fan requires maintenance. Please contact the
service engineer in time.
Failure Code
F1004
Fault Description
Diagnostic Ultrasound System
Service Manual
8 Troubleshooting
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