Fault Phenomenon: Konecranes explosion-proof hoist, remote control or pendant button pressed has no response.

Troubleshooting Process:
– Checked battery: sufficient power.
– Checked explosion-proof connectors: pins oxidized, poor contact.
– Cleaned oxide layer or replaced connectors.

Root Cause: Oxidation of the explosion-proof electrical connector contact surfaces caused signal transmission interruption.

Required Parts: Explosion-proof connector.