Maintenance Mode

Error code Error message Description

Left rear outrigger length detector trouble

The detection value of rear left outrigger length detector is out of the normal range.

Normal range: 5 to 95% (0.25 to 4.75 V)

E2012

Cause: Detector malfunction, signal line open/short circuit, board malfunction

Remedy: Perform inspection for the above possible cause. The status of any input from the detector can be checked using the “Ai check” function from the “Maintenance” menu.

Slewing angle detector 1 trouble

Although the slewing dead angle detection is OFF, the slewing angle detector 1 output is in the ON range of slewing dead angle detection.

Abnormality is detected only when the slewing dead angle detection is available.

E2017

Normal range: Set with by-models data

Cause: Detector malfunction, signal line open/short circuit, board malfunction

Remedy: Perform inspection for the above possible cause. The status of any input from the detector can be checked using the “Ai & Di check” function from the “Maintenance” menu.

Slewing angle detector 2 trouble

Although the slewing dead angle detection is ON, the slewing angle detector 2 output is in the OFF range of slewing dead angle detection.

Abnormality is detected only when the slewing dead angle detection is available.

E2019

Normal range: Set with by-models data

Cause: Detector malfunction, signal line open/short circuit, board malfunction

Remedy: Perform inspection for the above possible cause. The status of any input from the detector can be checked using the “Ai & Di check” function from the “Maintenance” menu.

Slewing angle detector offset trouble

Slewing angle detector 1 and 2 are mounted with 180° positional difference, and the difference has deviated from the normal range.

E2021

Normal range: Voltage output difference between detectors is 48.6 to 54.3%. (Set with by-models data)

Cause: Detector malfunction, signal line open/short circuit, board malfunction

Remedy: Perform inspection for the above possible cause. The status of any input from the detector can be checked using the “Ai check” function from the “Maintenance” menu.

E2022

Boom telescoping cylinder length detector trouble

The detection value of the telescoping cylinder length detector is out of the normal range.

Normal range: 0.25 to 4.75 V

Cause: Detector malfunction, signal line open/short circuit, board malfunction

Moment trouble

Load calculation value is negative. When the civil engineering input Di is "During civil engineering work," the abnormality will not be judged.

E2023

Cause: Detector malfunction, signal line open circuit, board malfunction

Remedy: Perform inspection for the above possible cause.

Elevating rod pressure trouble

The detection value of elevating cylinder's rod side pressure detector is out of the normal range, and the status continues for 5 seconds in low pressure side or for 1 second in high pressure side.

E2030

Normal range: 4 to 95% (0.20 to 4.75 V)

Cause: Detector malfunction, signal line open circuit, board malfunction

Remedy: Perform inspection for the above possible cause.

E2031

Elevating cylinder pressure trouble