Electrical System

CONTROL ON lamp does not come on after switching on the main switch .

Check the fuse in the control panel and the main fuses in the main switch. Check the bulbs inside the lamp.

Fuse in the control panel blows as soon as supply is switched on.

Check for short circuit in the control circuit.

Motors do not start or trip after some time.

Check the setting of the overload relay on the contractor. Check the currents in all phases.