Why so many scissor lift brands share the same fault codes
Chinese-built scissor lifts — Dingli, Sinoboom, Zoomlion, LGMG, Noblelift — use closely related control architectures: a ground ECU, a platform control unit (PCU), and a CAN bus tying them to the motor controller. That shared design is why a rental tech who knows "code 68" on one brand can usually guess what it means on another. This guide covers the four fault families we see searched most, what they mean on each brand, and the checks worth doing before you order parts.
If you already know your exact machine, jump straight to its code directory — every code we cover links to a model-specific fix guide:
- Dingli fault codes (275 codes)
- Sinoboom fault codes (155 codes)
- Zoomlion fault codes (130 codes)
- LGMG fault codes (100 codes)
Code 68: battery low
What it means: pack voltage dropped below the controller's cutoff threshold. On most 24V machines that is roughly 21V under load.
Same code, different brands: Zoomlion ZS1930DC code 68, Zoomlion ZS3246DC code 68, Sinoboom 1330SE code 68, and Dingli's equivalent code 66 battery low.
Before you order a charger:
- Charge overnight, then load-test the pack. A single dead 6V battery in a four-battery string mimics charger failure perfectly.
- Check the water level in every cell — chronic low water is the #1 killer of rental packs.
- Measure charger output at the plug (should exceed nominal pack voltage by 10-15% during bulk charge).
- Only then consider the charger or BMS. If the machine also throws CAN-timeout codes, look at wiring before either.
Parts that actually fix it: deep-cycle battery sets, charger (verify voltage/algorithm), battery cables and terminals. Corroded interconnect cables cause more "battery" faults than failed chargers.
Code 18 and pothole guard faults
What it means: the pothole protection bars under the chassis did not deploy (or did not confirm deployment) when the platform lifted. The machine blocks lift and drive above a low height — by design.
Where you will see it: Sinoboom displays code 18 (Sinoboom 4047E example); Dingli shows code 58 "Pothole"; LGMG and Zoomlion report pothole faults through their deploy-switch inputs.
The 10-minute fix that works most of the time: debris. Lower the platform fully, then inspect the pothole bars for packed dirt, zip ties, lumber scraps, or bent linkage. Cycle them by hand — both sides must move freely and click their limit switches. If the bars move but the fault stays, the limit switch or its wiring is the suspect, not the mechanism.
Parts that actually fix it: pothole limit switches, linkage/return springs, occasionally the harness section that runs along the chassis rail.
Code 02 and platform ECU / communication faults
What it means: the ground ECU and platform control box stopped talking, or one of them failed self-check at power-up. On Sinoboom machines code 02 is a system initialization fault (full guide); Dingli's 1xx-series CAN timeouts (code 110 example) are the same family.
Checks before replacing a control box:
- Power-cycle with the key, not the E-stop — some platforms hold CAN state through an E-stop reset.
- Inspect the coil cord / platform cable where it flexes at the platform entry. Broken conductors here cause most intermittent comms faults.
- Unplug and reseat the connectors at both control boxes; look for green corrosion on pins.
- If the fault is solid (not intermittent), swap-test with a known-good box from a sister machine before buying.
Parts that actually fix it: platform cable assemblies, upper control boxes, connector kits. Genuine ECU failures are rarer than the code volume suggests.
When the code is not in your manual
Manufacturers revise fault tables between production years. If your display shows a code that does not match your operator manual: (1) confirm the model and serial from the chassis plate, not the decals; (2) look it up in our per-model directories, which we keep updated across production revisions; (3) if it is still missing, send it to our tech team — we add verified codes to the database.
Keep your fleet moving
China Lift Supply stocks OEM-compatible aftermarket parts for all the brands above — batteries and chargers, pothole switches, control boxes, and the harnesses between them. Request a quote with your model and serial, or browse the full troubleshooting database covering 1,355+ codes across 9 brands.
