Sany · 21
Rear pump output pressure abnormal
What this code means
Rear pump output pressure abnormal.
Applies to: SY215 excavator (monitor failure codes).
Need the part?
If diagnosis points to a failed sensor, solenoid, controller or harness part, send us the code (21), machine model and serial number — we quote genuine and OEM replacement parts for export.
Ask for the replacement part on WhatsAppSource: SANY SY215 Excavator Operation Manual, failure code table (Scribd doc 520060670; document content retrieved via search index after the Scribd copy was removed). Single published source — confirm against the manual for your exact model before ordering parts. Compiled 2026-10-30. No manufacturer affiliation.