Komatsu · E104
Clogging of air cleaner
What this code means
Air cleaner (air filter) is clogged. Equivalent to error code AA10NX.
Applies to: PC200-7 excavator (service code).
Need the part?
If diagnosis points to a failed sensor, solenoid, controller or harness part, send us the code (E104), machine model and serial number — we quote genuine and OEM replacement parts for export.
Ask for the replacement part on WhatsAppSource: Komatsu PC200/220(LC)-7 Shop Manual – Testing and Adjusting, service codes table. Cross-checked in two independent sources. Compiled 2026-10-30. No manufacturer affiliation.