Italian coffee machine: summary of common failures of Delong coffee machine

The warning light is always on and the machine does not work after the Delon 3000 gamble 4000 series coffee machine is turned on. After entering the test mode, start the motor, the motor has a slight action, but does not work. After inspection, the bridge stack on the circuit board (rectifier bridge) is damaged, replace the bridge stack, troubleshooting. 2 Delong coffee machine 3000, 4000 series, fault: coffee water is not adjustable, lack of water lamp flashing, but can be made