EH-TW3500/4500/5500 Troubleshooting CONFIDENTIAL
SEIKO EPSON 28 Revision A
FN Fan error
INT Fan
EX Fan
Lamp Fan
PS Fan
Cable is not connected properly. Connect the fan cable correctly.
• "3.3.7 Removing the EX Fan
(assembly) (p65)"
• "3.3.11 INT Fan (assembly)
(p85)"
• "3.3.7.2 PS Fan (p67)"
• "3.3.10 Lamp Fan (p83)"
Cable is broken. Replace the fan with a broken cable.
Blade is broken. Replace the fan with a broken blade.
Revolutions of the fan becomes
abnormal.
Replace the abnormal fan.
Accumulation of dust occurs on a fan. Clean the fan of accumulated dust.
Error code/error name Faulty part/part name Cause Remedy Reference
EX Fan
INT Fans
Lamp Fan
PS Fan