Possible Causes Are:Out of Gas – Fill Gasoline Tank with appropriate fuelEngine ON/OFF Switch is in OFF Position – Place engine ON/OFF switch in ON PositionBattery is Dead – Charge or Replace the BatteryGasoline / Fuel Filter is Clogged – Replace or clean filter; bleed injector pump on diesel enginesFuel Valve Closed – Some pressure washers have a fuel valve installed in the tank. Opening the valve will allow fuel flow through the system.Dirty Battery Contacts – Clean connectionsBattery Cables are Damaged or Disconnected – Connect or replace damaged cablesLoose Spark Plug Wire – ReconnectEngine Flooded or Starved – Refer to Operator’s Manual for correct choke or throttle settingLow Engine Oil Level – Replenish engine oil supply. Most gas engines have a low-level shutdown, which will not allow the engine to start until the oil is at an appropriate levelKey Switch, Solenoid or Starter on Engine is Defective – Repair or replace faulty componentEngine, Pump or Gearbox is Seized – Identify, replace or repair seized component