EH-TW3500/4500/5500 Troubleshooting CONFIDENTIAL
SEIKO EPSON 22 Revision A
TROUBLESHOOTING OF FAN ERROR/SENSOR ERROR
TROUBLESHOOTING ON HIGH TEMP ERROR
TROUBLESHOOTING ON AUTO IRIS ERROR / CINEMA FILTER ERROR
LED Status
Corresponding error code
and error name
Remedy Reference
Fan Error
Sensor Error
FN: Fan Error
1. Check the connections between each fans/sensor and the MA Board. If there is a
connection failure, connect it correctly.
2. If the same error occurs after turning the power on, connect the PC to the projector
and check the error code on the AS Menu, then carry out the remedy referring to
the reference #2 on the right column.
1. "2.4.5 Cable Connection and
Projector’s Status (p41)"
2. " Troubleshooting from the
Error Code on Cooling
System Errors (p27)"
SE: Sensor Error
LED Status
Corresponding error code
and error name
Remedy Reference
High Temp Error
(overheating)
TH: High Temp Error
1. Check the Air Filter's condition (dirt accumulation, clogging).
When clogging or the like is found, clean/replace the filter.
2. If the same error occurs after turning the power on, connect the PC to the projector
and check the error code on the AS Menu, then carry out the remedy referring to
the reference #2 on the right column.
1. "3.3.1 Air Filter Assembly
(p54)"
2. " Troubleshooting from the
Error Code on Cooling
System Errors (p27)"
LED Status
Corresponding error code
and error name
Remedy Reference
Auto Iris Error
Cinema Filter Error
AI: Auto Iris Error
1. Check the connections between each Motors/sensor and the MA Board. If there is
a connection failure, connect it correctly.
2. If the same error occurs after turning the power on, connect the PC to the projector
and check the error code on the AS Menu, then carry out the remedy referring to
the reference on the right column.
1. "2.4.5 Cable Connection and
Projector’s Status (p41)"
2. " Troubleshooting from the
Error Code on Electric
Circuit Errors (p31)"
CF: Cinema Filter Error
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