Fault Phenomenon: Merlo telescopic handler instrument displays a boom angle error, restricting boom movement, unable to operate normally.

Troubleshooting Process:
– Checked angle sensor: sensor wiring open circuit.
– Checked sensor mounting: mounting bolt loose.
– Checked boom mechanism: boom deformed.
– Checked controller: controller reading error.

Root Cause: Open circuit in the boom angle sensor wiring or loose mounting causes signal loss.

Required Parts: Boom angle sensor assembly.