7kw portable gasoline generator (1) exciter field winding disconnected. Check exciter field winding resistance should be infinite. Replace broken coil or coil circuit is turned on. (2) the main generator field winding severe short circuit. Exciter field winding current is large. The main generator field winding severe fever, shock increases, the field winding resistance of many small tributaries than normal. Replace shorted coil. (3) automatic voltage regulator failure. Rated speed, automatic voltage regulator output measured current value is equal to a tributary of the factory load characteristics of the motor. Maintenance automatic voltage regulator. No-load voltage is too high (1) automatic voltage regulator control. Load exciter field winding current is too large. Check the automatic voltage regulator. (2) the tuning voltage is too high re-tuning voltage. Exciter field current is too large (1) rectifying element has one or two elements are not breaking forward and backward pass, check with a multimeter, replace damaged components. 7kw portable gasoline generator Contact Li: 021-60792135 / 18101924118 service one year warranty and lifetime maintenance model EU-7000DE frequency Hz 50 Rated output power KW 6.3 KW 6.6 rated maximum output power of the battery voltage V 230/400 capacitance Ah 9 Gasoline EU440D Phase Single-phase four-stroke gasoline engine type horizontal bar OHV Displacement CC 438 transistor magnet ignition system ignition Fuel tank capacity L 25 Fuel consumption g / (kw.h) ≤360 working time H 7 Oil Capacity L 1.1 Dimensions: Length X width X height mm 677 * 532 * 551 battery voltage V 12 0 KG 85 7kw portable gasoline generator