What to do if operations from upper controls are not available on Aichi Boom Lifts?
- GGary JohnsonAug 3, 2025
If operations from the upper controls are unavailable, several factors could be the cause. First, ensure the engine is running. Next, make sure the foot switch is depressed while operating the controls, except during engine start. Check if the power indicator light on the upper controls is on; if it's off, turn the key switch on the lower controls to the upper controls position. If the power indicator light is flashing, release all controls until it turns on, then try operating again. Finally, if the system failure light is on or flashing, immediately stow the boom and stop using the machine, and contact AICHI or an AICHI dealer for inspections.