Ivan’s Denzel compressor—a reliable workhorse for three years—was silent. He pushed the red switch up. Nothing. He pushed the red thermal reset button on the side. Silence.
Check the oil sight glass. If it's too low, the pump won't run, or it will damage the motor. instruktsiia denzel kompressor
Ensure it is plugged into a grounded outlet and the pressure switch is pulled UP (ON) [based on typical Denzel designs]. the pump won't run
If water is in the tank, open the drain valve (bottom) to prevent rusting and issues. The "Never-Ending" Project: A Denzel Tale instruktsiia denzel kompressor