JLG boom lifts (450AJ, 600AJ, 800AJ, 460SJ, 660SJ, 860SJ, 1250AJP, M450AJ, M600JP)
JLG error code 23103 — TOWER LIFT CYLINDER - OVER PRESSURE
Message on the display: TOWER LIFT CYLINDER - OVER PRESSURE · flash code 2/3
Code 23103 occurs in machines: JLG 1250AJP.
blocking fault
At the conclusion of a tower lift command that was held for at least three seconds with the boom not on the rest and the pressure is greater than 2200 psi for three seconds
Description from the JLG service manual, in the original wording.
Possible causes
The manual does not list the causes for this code: the service technician establishes them during diagnosis of the machine.
Checks from the manual
- Tower lift cylinder over pressure
What service does
A qualified service technician reads the code with the manufacturer's diagnostic tools, finds the cause, clears the code and carries out a function test.
Source: JLG Service and Maintenance Manuals: 600AJ (3121201), 800AJ (3120858), 460SJ, 860SJ, 1250AJP (3122581800), M450AJ (3121829), M600JP (3121711), Diagnostic Trouble Codes tables.
The descriptions are quoted from the manufacturer's service documentation and are for guidance only. Clearing codes, calibrations and repairs are carried out by a qualified service technician according to the manual for the specific serial number. A machine with an active blocking code must not be used until the cause has been removed.
Does code 23103 not go away?
RK Rental services JLG lifts at our workshop or on site at the customer's premises (construction site, factory, warehouse). We read the code, remove the cause and select the parts by serial number.
Neighbouring JLG codes
- 23100TOWER LIFT PRESSURE SENSOR - OUT OF RANGE HIGH
- 23101TOWER LIFT PRESSURE SENSOR - OUT OF RANGE LOW
- 23102TOWER LIFT PRESSURE SENSOR - NOT DETECTING CHANGE
- 23105FUNCTION PROBLEM - TOWER LIFT UP PERMANENTLY SELECTED
- 23106FUNCTION PROBLEM - TOWER LIFT DOWN PERMANENTLY SELECTED
- 23107FUNCTION PROBLEM - LIFT UP PERMANENTLY SELECTED