Service tool
Aerial lift error codes: check what yours means
Is your scissor lift, boom lift or cherry picker (aerial work platform, MEWP) showing a code on the display? Choose the brand and the machine type and enter the code. You will see what it means, the possible causes, the checks and the solution, quoted in the original wording of the manufacturer's service manual. The database holds 8,310 codes for JLG, Genie, Haulotte and Zoomlion machines, explained on the basis of the manufacturers' service manuals.
Where the manual gives only the message for a code, its page shows the message and general guidance. The manual for the Zoomlion ZS series (ZS0407 to ZS1414) exists only in Polish: those descriptions are our English translation, marked on each page.
You can also look up a code by web address, e.g. fajnepodnosniki.pl/en/error-codes/search?code=H001.
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.
How do I read JLG, Genie, Haulotte and Zoomlion error codes?
JLG
JLG ES series scissor lifts (1930ES, 2030ES, 2630ES, 2646ES, 3246ES)
The 3- or 4-digit code is shown on the ground control box display or on the JLG analyser; the first digit is the system group (2 = control, 3 = outputs/valves, 4 = power supply, 6 = communication, 8 = sensors). The same fault is also given as a flash code on the indicator light (e.g. 2/1).
Applies to: JLG 1930ES, 2030ES, 2630ES, 2646ES, 3246ES, 4045ES and derivatives (ES1932, ES3246)
All codes (206) →JLG
JLG LE electric scissor lifts (3369LE, 4069LE, M3369, M4069)
The DTC code (3 to 5 digits) is shown by the JLG analyser in the top right corner of the screen, on machines with software P1.0 or later. Older software gives a two-digit flash code instead (e.g. 2/2) at the end of the help message.
Applies to: JLG 3369LE, 4069LE, M3369, M4069
All codes (52) →JLG
JLG boom lifts (450AJ, 600AJ, 800AJ, 460SJ, 660SJ, 860SJ, 1250AJP, M450AJ, M600JP)
The 3- or 4-digit code is read with the JLG analyser (socket in the chassis control box); the ground control display also gives a group/subgroup flash code (e.g. 4/3). Engine codes (437 ENGINE TROUBLE CODE) come from a separate engine controller.
Applies to: JLG 400S, 460SJ, 450AJ, 510AJ, 600AJ, 600S, 660SJ, 800AJ, 800S, 860SJ, 1250AJP, E450AJ, M450AJ, E600JP, M600JP and related models
All codes (978) →Genie
Genie GS scissor lifts with SmartLink control (GS-1930, GS-1932, GS-2632, GS-3246, GS-4047, GS-4655)
The code (a letter plus 3 digits, e.g. H001, P002, U011) is shown on the ground control box display (GCON). The letter is the system: H = hydraulics and valve coils, P = power supply, U = control boxes and joystick, F = functions and interlocks, C = communication between modules.
Applies to: Genie GS-1330m, GS-1530, GS-1532, GS-1930, GS-1932, GS-2632, GS-2646, GS-3232, GS-3246, GS-4047, GS-4655 (2016 and later)
All codes (333) →Genie
Older Genie GS scissor lifts with LED display (GS-1530, GS-1930, GS-2032, GS-2632, GS-3232, GS-2046, GS-2646, GS-3246)
The two-character code (e.g. 02, 18, 58, LL, OL) is shown on the LED diagnostic display of the controller (ECM). When a fault code is displayed, a dot lights up next to the digits. This is an older generation than the SmartLink control with letter + 3-digit codes.
Applies to: Genie GS-1530, GS-1532, GS-1930, GS-1932, GS-2032, GS-2632, GS-3232, GS-2046, GS-2646, GS-3246 built before the SmartLink control (manuals 72972 and 97385)
All codes (35) →Genie
Genie GS-RT rough terrain scissor lifts with text display (GS-2668 RT, GS-3268 RT, GS-3384 RT, GS-4390 RT, GS-5390 RT, GS-3369 RT, GS-4069 RT)
The ground control box display shows a number and a text message (e.g. 58 BRAKE COIL FAULT). The light on the platform control box is red when there is a fault and green when the machine is ready (SYSTEM READY). This applies to the GS-2668/3268 RT from serial number GS6803-42382, the GS-3384 RT from GS8403-40213 and the GS-3390/4390/5390 and GS-2669/3369/4069 RT; older machines use the numbers with a different meaning, see the separate lists.
Applies to: Genie GS-2668 RT, GS-3268 RT, GS-3384 RT, GS-3390 RT, GS-4390 RT, GS-5390 RT, GS-2669 RT, GS-3369 RT, GS-4069 RT
All codes (58) →Genie
Older Genie GS-2668 RT and GS-3268 RT (before serial number GS6803-42382)
The two-digit code is shown on the LED display of the controller (ECM). Note: in this generation the same numbers mean something different than in newer GS-RT machines with a text display and in the GS-3384 RT, so check the machine's serial number on the data plate before reading the code.
Applies to: Genie GS-2668 RT, GS-3268 RT before serial number GS6803-42382
All codes (34) →Genie
Older Genie GS-3384 RT (before serial number GS8403-40213)
The two-digit code is shown on the LED display of the controller (ECM); the dot next to the digits is either steady or flashing, depending on the code. Note: the numbers mean something different than in the GS-2668/3268 RT and in newer GS-RT machines with a text display, so check the machine's serial number.
Applies to: Genie GS-3384 RT before serial number GS8403-40213
All codes (30) →Genie
Genie S and Z boom lifts: ‘source + error type’ codes (S-40, S-45, S-80, S-85, Z-60/34, Z-51/30J)
The code is made up of two two-digit numbers: the source of the error (red LED) and the error type (yellow LED) on the ALC-500 controller board in the platform control box; the LEDs flash out the first and the second number in turn. Two short alarm beeps on the platform every 30 seconds indicate a stored error. In our database 21-11 means source 21, type 11. Reading the code requires opening the control box, so it is done by service.
Applies to: Genie S-40, S-45, S-80, S-85, Z-60/34, Z-51/30J
All codes (81) →Genie
Genie XC, HF and J boom lifts (S-60 XC, S-80 XC, S-85 XC, S-80 HF, S-85 HF, S-60 J, S-80 J)
The code is made up of two numbers: the fault source and the fault type (e.g. 15-21), shown on the display of the machine's ground control box.
Applies to: Genie S-60 XC, S-80 XC, S-85 XC, S-80 HF, S-85 HF, S-60 J, S-80 J
All codes (208) →Genie
Genie S-40 XC
The code is made up of two numbers: the fault source and the fault type (e.g. 15-21), shown on the display of the machine's ground control box. Note: on the S-40 XC the same numbers can mean something different than on the larger XC models.
Applies to: Genie S-40 XC
All codes (135) →Genie
Genie S-85 XC FE and S-85 XC E (hybrid and electric drive)
The code is made up of two numbers: the fault source and the fault type (e.g. 15-21), shown on the display of the machine's ground control box.
Applies to: Genie S-85 XC FE, S-85 XC E
All codes (250) →Genie
Genie DC and FE electric boom lifts (Z-60 DC, S-60 DC, Z-45 DC, Z-45 FE, Z-33/18 DC)
The code is made up of two numbers: the fault source and the fault type (e.g. 15-21), shown on the display of the machine's ground control box.
Applies to: Genie Z-60 DC, S-60 DC, Z-45 DC, Z-45 FE, Z-33/18 DC
All codes (408) →Genie
Genie Z-40/23N, Z-40/23N RJ and Z-33/18: machine control
The code is made up of two numbers: the fault source and the fault type (e.g. 15-21), shown on the display of the machine's ground control box.
Applies to: Genie Z-40/23N, Z-40/23N RJ, Z-33/18 DC
All codes (119) →Genie
Genie Z-40/23N and Z-33/18: AC drive motor controller
These are codes of the AC electric motor controller, separate from the machine control codes; the number is given in the manual's table of motor controller faults.
Applies to: Genie Z-40/23N, Z-40/23N RJ, Z-33/18 DC
All codes (33) →Genie
Genie S-85 XC FE/E, S-60 DC, Z-60 DC: drive motor controllers
These are codes of the electric drive motor controllers (hexadecimal notation, e.g. 0x2510), separate from the machine control codes.
Applies to: Genie S-85 XC FE, S-85 XC E, S-60 DC, Z-60 DC
All codes (107) →Genie
Genie Z-30/20N, Z-34/22, Z-45/25 DC: Curtis motor controller
These are codes of the Curtis motor controller (two-digit), separate from the machine control codes; the manual lists them in the controller fault table.
Applies to: Genie Z-30/20N, Z-30/20N RJ, Z-34/22, Z-34/22N, Z-34/22 BE, Z-45/25 DC, Z-45/25J DC, Z-45/25 BE
All codes (11) →Genie
Genie battery charger (GS, GR, GRC, QS)
A code starting with E or F (e.g. E-0-0-1, F-0-0-5) is signalled by the machine's on-board charger.
Applies to: Genie GS-1432m, GS-1932m, GS-1932, GS-2632, GS-3232, GS-2646, GS-3246, GS-4046, GS-4655, GR-12, GR-15, GR-20, GRC-12, QS-12R and DC models
All codes (34) →Genie
Genie S-85 XC FE / E: traction battery charger
A code starting with E or F is signalled by the charger; the numbers mean something different than in the chargers of Genie scissor lifts.
Applies to: Genie S-85 XC FE, S-85 XC E
All codes (101) →Genie
Genie GS: lithium battery (codes F0–F15)
A code F0–F15 is reported by the lithium battery management system (BMS).
Applies to: Genie GS-1332m, GS-1432m, GS-1932m, GS-1932, GS-2632, GS-3232, GS-2646, GS-3246, GS-4046, GS-4655 with lithium battery
All codes (16) →Genie
Genie GR-20J and GR-26J (vertical mast lifts with jib)
The code is made up of two numbers: the fault source and the fault type (e.g. 15-21), shown on the display of the machine's ground control box.
Applies to: Genie GR-20J, GR-26J
All codes (74) →Genie
Older Genie S-100, S-105, S-120, S-125: display messages
The older S-100 to S-125 do not give a fault number: the display shows a text message. In our database the message is also the code.
Applies to: Genie S-100, S-105, S-120, S-125 (older generation)
All codes (127) →Genie
Genie with Continental TME27 engine: engine controller codes
These are codes of the combustion engine controller (ECM), separate from the machine control codes. The code number is given in the manual's engine fault table.
Applies to: Genie S-80, S-85, S-80X, Z-80/60 with Continental engine
All codes (75) →Genie
Genie with GM engine (petrol/LPG): engine controller codes
These are codes of the combustion engine controller (ECM), separate from the machine control codes. The manual gives the DTC number together with the SPN/FMI pair.
Applies to: Genie Z-80/60, S-80 XC, S-85 XC, S-80 HF, S-85 HF, Z-34/22 IC, GS-2669 RT, GS-3369 RT, GS-4069 RT with GM engine
All codes (276) →Genie
Genie with Perkins 404 engine: engine controller codes
These are codes of the combustion engine controller (ECM), separate from the machine control codes. The code has the form SPN-FMI (e.g. 91-3).
Applies to: Genie S-40 XC, S-60 XC, S-80 XC, S-85 XC, S-80 HF, S-85 HF, S-40, S-60, S-80, S-85, S-80X, Z-45/25, Z-62/40, Z-80/60 with Perkins 404 engine
All codes (70) →Genie
Genie with Perkins 854F engine: engine controller codes
These are codes of the combustion engine controller (ECM), separate from the machine control codes. The code has the form SPN-FMI (e.g. 27-3).
Applies to: Genie SX-105 XC, SX-135 XC, SX-150, SX-180, ZX-135/70 with Perkins 854F engine
All codes (155) →Genie
Genie with Kubota D1803 engine: engine controller codes
These are codes of the combustion engine controller (ECM), separate from the machine control codes. The code has the form SPN-FMI (e.g. 29-3).
Applies to: Genie S-60 J, S-80 J with Kubota D1803 engine
All codes (108) →Genie
Genie with Deutz D436 engine: engine controller codes
These are codes of the combustion engine controller (ECM), separate from the machine control codes. The code has the form SPN-FMI (e.g. 84-8).
Applies to: Genie S-60 XC, S-60 with Deutz engine
All codes (19) →Genie
Genie with Ford engine (petrol/LPG): ECM engine controller codes
These are engine controller codes, separate from the machine control codes. On newer engines the engine indicator light flashes out the three-digit code when the run/test switch is held in the test position (e.g. 5 flashes, 3 flashes, 1 flash = code 531; code 123 opens and closes the code list). Older engines give two-digit codes; 11 means correct operation.
Applies to: Genie S-40, S-45, S-60, S-65, S-80, S-85, Z-45/25, Z-60/34, Z-80/60, GS-3384 RT, GS-3390 RT, GS-4390 RT, GS-5390 RT with Ford engine (petrol/LPG)
All codes (106) →JLG
JLG RT rough terrain scissor lifts (3394RT, 4394RT)
These machines do not give a fault number: the display and the JLG analyser show a text message (e.g. KEYSWITCH FAULTY - PLATFORM & GROUND ACTIVE TOGETHER), and some messages also flash out a flash code (e.g. 2/1) on the diagnostic light. In our database the message is also the code.
Applies to: JLG 3394RT, 4394RT
All codes (124) →Genie
Genie Z-80/60, Z-135/70, S-100, S-105, S-120, S-125: faults by source and type
The manual for these machines describes faults as a ‘source of error + type of error’ pair (e.g. PRIMARY BOOM EXT/RET FLOW VALVE - VALUE TOO HIGH), and the controller shows the message on the LCD of the control box. In our database this pair is also the code. Ford engine (ECM) codes are listed separately, under the system ‘Genie with Ford engine’.
Applies to: Genie Z-80/60, Z-135/70, S-100, S-105, S-120, S-125
All codes (447) →JLG
JLG electric boom lifts E300A, E300AJ, E300AJP and E600J, M600J
These machines do not give a fault number: the JLG analyser shows a text message, and the diagnostic light flashes out the group flash code (e.g. 2/2). In our database the message is also the code; we give the flash code with every message.
Applies to: JLG E300A, E300AJ, E300AJP, E600J, M600J
All codes (105) →JLG
JLG 260MRT rough terrain scissor lift
These machines do not give a fault number: the JLG analyser shows a text message, and the diagnostic light flashes out the group flash code (e.g. 2/2). In our database the message is also the code; we give the flash code with every message.
Applies to: JLG 260MRT
All codes (46) →JLG
JLG E3 series electric scissor lifts (older generation)
These machines do not give a fault number: the JLG analyser shows a text message, and the diagnostic light flashes out the group flash code (e.g. 2/2). In our database the message is also the code; we give the flash code with every message.
Applies to: JLG E3 series, manuals for the ranges 1532–2646 and 1532–2658
All codes (26) →Haulotte
Haulotte HA20 RTJ, HA20 RTJ O, HA20 RTJ PRO (HA61 RTJ)
The code Fxx.yy is shown on the ground control box display (Activ'Screen) and in the Haulotte Diag app: the first two digits are the system group (e.g. F03 = relays, F04 = solenoid valves, F05 = joysticks, F07 = sensors, F08 = power supply, F09 = engine, F12 = internal controller faults), the last two identify the specific component.
Applies to: Haulotte HA20 RTJ, HA20 RTJ O, HA20 RTJ PRO, HA61 RTJ O, HA61 RTJ PRO
All codes (69) →Haulotte
Haulotte HA26 RTJ O, HA26 RTJ PRO (HA80 RTJ)
The code Fxx.yy is shown on the ground control box display (Activ'Screen) and in the Haulotte Diag app: the first two digits are the system group (e.g. F03 = relays, F04 = solenoid valves, F05 = joysticks, F07 = sensors, F08 = power supply, F09 = engine, F12 = internal controller faults), the last two identify the specific component.
Applies to: Haulotte HA26 RTJ O, HA26 RTJ PRO (also SW versions)
All codes (76) →Haulotte
Haulotte HA32 RTJ PRO and HA41 RTJ PRO (HA100 / HA130 RTJ PRO)
The code Fxx.yy is shown on the ground control box display (Activ'Screen) and in the Haulotte Diag app: the first two digits are the system group (e.g. F03 = relays, F04 = solenoid valves, F05 = joysticks, F07 = sensors, F08 = power supply, F09 = engine, F12 = internal controller faults), the last two identify the specific component.
Applies to: Haulotte HA32 RTJ PRO, HA41 RTJ PRO, HA100 RTJ PRO, HA130 RTJ PRO
All codes (84) →Haulotte
Haulotte HT23 RTJ O, HT23 RTJ PRO (HT67 RTJ)
The code Fxx.yy is shown on the ground control box display (Activ'Screen) and in the Haulotte Diag app: the first two digits are the system group (e.g. F03 = relays, F04 = solenoid valves, F05 = joysticks, F07 = sensors, F08 = power supply, F09 = engine, F12 = internal controller faults), the last two identify the specific component.
Applies to: Haulotte HT23 RTJ O, HT23 RTJ PRO, HT67 RTJ O, HT67 RTJ PRO (also SW versions)
All codes (76) →Haulotte
Haulotte HT26 RT O, HT28 RTJ O, HT28 RTJ PRO
The code Fxx.yy is shown on the ground control box display (Activ'Screen) and in the Haulotte Diag app: the first two digits are the system group (e.g. F03 = relays, F04 = solenoid valves, F05 = joysticks, F07 = sensors, F08 = power supply, F09 = engine, F12 = internal controller faults), the last two identify the specific component.
Applies to: Haulotte HT26 RT O, HT28 RTJ O, HT28 RTJ PRO (also SW versions)
All codes (81) →Haulotte
Haulotte HT43 RTJ PRO (HT132 RTJ PRO)
The code Fxx.yy is shown on the ground control box display (Activ'Screen) and in the Haulotte Diag app: the first two digits are the system group (e.g. F03 = relays, F04 = solenoid valves, F05 = joysticks, F07 = sensors, F08 = power supply, F09 = engine, F12 = internal controller faults), the last two identify the specific component.
Applies to: Haulotte HT43 RTJ PRO, HT132 RTJ PRO
All codes (80) →Haulotte
Haulotte HA20 LE and HA20 LE PRO (HA61 LE): electric boom lift
The code Fxx.yy is shown on the ground control box display (Activ'Screen) and in the Haulotte Diag app: the first two digits are the system group (e.g. F03 = relays, F04 = solenoid valves, F05 = joysticks, F07 = sensors, F08 = power supply, F09 = engine, F12 = internal controller faults), the last two identify the specific component.
Applies to: Haulotte HA20 LE, HA20 LE PRO, HA61 LE, HA61 LE PRO
All codes (113) →Haulotte
Haulotte HA12 CJ and HA12 CJ+ (HA32 CJ)
The machine's display shows a code made of letters (e.g. AV, SC, EV, OL, SE, MX, EP); the manual assigns them Fxx.yy codes, under which they are listed in our database. The original code from the display is given in the description.
Applies to: Haulotte HA12 CJ, HA12 CJ+, HA32 CJ, HA32 CJ+
All codes (40) →Haulotte
Haulotte Star vertical mast lifts (Star 6, Star 8S, Star 10, Star 13, Star 20, Star 26J)
The code Fxx.yy is shown on the machine's display and in the Haulotte Diag app: the first two digits are the system group, the last two identify the specific component.
Applies to: Haulotte Star 6, Star 6C, Star 6P, Star 8S, Star 10, Star 13, Star 13P, Star 20, Star 26J
All codes (67) →Haulotte
Haulotte Optimum 8 (Optimum 1931 E): electric scissor lift, newer generation
The code Fxx.yy is shown on the machine's display and in the Haulotte Diag app. Older Optimum machines with a ZAPI controller give AL alarms; these are listed under the system ‘Haulotte: Activ'Screen and ZAPI controllers’.
Applies to: Haulotte Optimum 8, Optimum 1931 E
All codes (59) →Zoomlion
Zoomlion ZS series scissor lifts (ZS0407, ZS0607, ZS0608, ZS0808, ZS0812, ZS1012, ZS1212, ZS1414)
The two-character code (e.g. 01, 52, LL) is shown on the LED diagnostic display of the platform control box and on the LCD of the ground control box. The fault must be removed before work resumes.
Applies to: Zoomlion ZS0407, ZS0607, ZS0608, ZS0808, ZS0812, ZS1012, ZS1212, ZS1414 (DC, DC-Li, AC, AC-Li versions) and ZS0508C, ZS0610C, ZS0612C, ZS1216C
All codes (101) →Zoomlion
Zoomlion ZS1530E and ZS1930E scissor lifts
The code is shown on the diagnostic display of the platform control box and on the display of the ground control box. The fault must be removed before work resumes. Note: the same numbers mean something different here than in the ZS0407 to ZS1414 series.
Applies to: Zoomlion ZS1530E, ZS1930E
All codes (55) →Zoomlion
Zoomlion ZS1218ERT electric rough terrain scissor lift
The code is shown on the diagnostic display of the platform control box and on the display of the ground control box. The fault must be removed before work resumes.
Applies to: Zoomlion ZS1218ERT
All codes (51) →Zoomlion
Zoomlion ZS2023ERT electric rough terrain scissor lift
The code is shown on the diagnostic display of the platform control box and on the display of the ground control box. The fault must be removed before work resumes.
Applies to: Zoomlion ZS2023ERT
All codes (87) →Zoomlion
Zoomlion ZS-RT rough terrain scissor lifts with Kubota engine (ZS1018RT, ZS1218RT, ZS1023RT, ZS1323RT, ZS1623RT)
The code is shown on the diagnostic display of the platform control box and on the display of the ground control box. The fault must be removed before work resumes.
Applies to: Zoomlion ZS1018RT, ZS1218RT, ZS1023RT, ZS1323RT, ZS1623RT
All codes (63) →Zoomlion
Zoomlion ZS-RT rough terrain scissor lifts with Weichai engine (ZS1023RT, ZS1323RT, ZS1623RT)
The code is shown on the diagnostic display of the platform control box and on the display of the ground control box. The fault must be removed before work resumes. With the Weichai engine the same numbers have different names than with the Kubota engine.
Applies to: Zoomlion ZS1023RT, ZS1323RT, ZS1623RT (Weichai E3/E4 engine)
All codes (55) →Zoomlion
Zoomlion ZA electric articulating boom lifts (ZA10RJE, ZA14JE, ZA14NJE, ZA16JERT, ZA20JE)
The DTC code (a 4- or 5-digit number) is shown on the machine's display. In the manual the manufacturer gives only the number and the name of the fault, without a description of causes and solution, so for these codes we explain only what they mean.
Applies to: Zoomlion ZA10RJE, ZA14JE-Li, ZA14JE, ZA14NJE-Li, ZA14NJE, ZA16JERT-Li, ZA16JERT, ZA20JE
All codes (543) →Zoomlion
Zoomlion ZA diesel articulating boom lifts (ZA14J, ZA18J, ZA20J, ZA24J, ZA26J, ZA32J, ZA42J)
The DTC code (a 4- or 5-digit number) is shown on the machine's display. In the manual the manufacturer gives only the number and the name of the fault, without a description of causes and solution, so for these codes we explain only what they mean.
Applies to: Zoomlion ZA14J, ZA18J, ZA20J, ZA24J, ZA26J, ZA32J, ZA42J
All codes (123) →Zoomlion
Zoomlion ZT electric telescopic boom lifts (ZT18JE-V, ZT21JE-V, ZT26JE, ZT32JE-V, ZT38JE)
The DTC code (a 4- or 5-digit number) is shown on the machine's display. In the manual the manufacturer gives only the number and the name of the fault, without a description of causes and solution, so for these codes we explain only what they mean.
Applies to: Zoomlion ZT18JE-V Li, ZT21JE-V Li, ZT26JE, ZT32JE-V, ZT38JE
All codes (717) →Zoomlion
Zoomlion ZT diesel telescopic boom lifts (ZT20J, ZT26J, ZT30J, ZT34J, ZT58J, ZT68J, ZT72J-V)
The DTC code (a 4- or 5-digit number) is shown on the machine's display. In the manual the manufacturer gives only the number and the name of the fault, without a description of causes and solution, so for these codes we explain only what they mean.
Applies to: Zoomlion ZT20J, ZT26J, ZT30J, ZT34J, ZT58J, ZT68J, ZT72J-V
All codes (497) →Zoomlion
Zoomlion ZT J-V series telescopic boom lifts (ZT32J-V, ZT38J-V, ZT42J-V, ZT51J-V)
The DTC code (a 4- or 5-digit number) is shown on the machine's display. In the manual the manufacturer gives only the number and the name of the fault, without a description of causes and solution, so for these codes we explain only what they mean.
Applies to: Zoomlion ZT32J-V, ZT38J-V, ZT42J-V, ZT51J-V
All codes (188) →Haulotte
Haulotte: Activ'Screen (HA/HT RTJ, PRO) and ZAPI controllers (Compact, Optimum)
Newer Haulotte machines show an Fxx.yy code on the ground control box display (Activ'Screen); the letter A/D next to the code is the fault type (active / detected). Older electric scissor lifts (Compact, Optimum) have a ZAPI controller and AL / EP codes.
Applies to: Haulotte HA16 RTJ PRO, HA20 LE PRO, HA26 RTJ PRO, HT23 RTJ PRO, Compact 8/10/12/14, Optimum 8, Star 10
All codes (98) →Most frequently checked codes
- 211JLG: POWER CYCLE
- 226JLG: ACCELERATOR FAULTY - WIPER OUT OF RANGE
- 255JLG: PLATFORM OVERLOADED
- 256JLG: DRIVE PREVENTED - POTHOLE NOT ENGAGED
- 421JLG: POWER MODULE TOO HOT - PLEASE WAIT
- 441JLG: BATTERY VOLTAGE TOO LOW - SYSTEM SHUTDOWN
- 661JLG: CANBUS FAILURE - POWER MODULE
- 662JLG: CANBUS FAILURE - PLATFORM MODULE
- 811JLG: TILT SENSOR NOT CALIBRATED
- 211JLG: POWER CYCLE
- 226JLG: ACCELERATOR (or JOYSTICK) FAULTY - WIPER OUT OF RANGE
- 255JLG: PLATFORM OVERLOADED
- 421JLG: POWER MODULE TOO HOT - PLEASE WAIT
- 441JLG: BATTERY VOLTAGE TOO LOW - SYSTEM SHUTDOWN
- 661JLG: CANBUS FAILURE: POWER MODULE
Aerial lift error codes: frequently asked questions
How do I check what a lift error code means?
Choose the brand (JLG, Genie, Haulotte, Zoomlion) and the machine type, then enter the code shown on the display of the control panel. The tool shows what the code means, the possible causes, the checks and the solution, quoted in the original wording of the manufacturer's service manual.
Where do I read the error code on a JLG lift?
On the display of the ground control box (on the chassis) or with a JLG analyser connected to the socket in the control box. The light on the control panel also flashes out a group/subgroup flash code, e.g. 2/1. The first digit of the code shows the system: 2 = control, 3 = outputs and valves, 4 = power supply and thermal protection, 6 = communication, 8 = sensors.
What do the letters in Genie error codes (H, P, U, F, C) mean?
H = hydraulics and valve coils, P = power supply and battery, U = control boxes and joystick, F = functions and interlocks, C = communication between control modules. The code is shown on the display of the GCON ground control box, e.g. H001, P002.
Can I work with a lift that has an active error code?
No, if the code blocks a function or concerns the safety systems (tilt, overload, sensors). Information codes (e.g. a normal operation message) need no reaction. Clearing codes and calibrations are carried out by service according to the manual for the machine's serial number.
Does the code not go away, or is it not in the database?
Send us a photo of the display and tell us the model. We will read the code, diagnose the cause and remove the fault at our workshop or on site at the customer's premises (construction site, factory, warehouse), with parts from our stock.
Source of the descriptions: the manufacturers' service manuals from the RK Rental archive · aerial lift service · parts