Error code P2229 indicates "engine gap type fault". When this error code appears on the screen, it means that there is a gap fault in the engine of your Sany 135 excavator. In this case, it is recommended to go to the 4S shop for maintenance, and it is not allowed to continue to use it, otherwise it may aggravate the damage of the engine.
Please note that the above information is for reference only. If your excavator encounters other fault codes, please consult professional technicians in time.