McCulloch 7096-140A02 Manuale Utente

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Fault
  Cause Analysis
Corrective Action
When switch "I" the machine 
will not start working
• Pressure washer not plugged in. 
• Circuit breaker has tripped or 
  fuse is blown.
• "RESET" button on GFCI not 
   pushed.
• The pump is stuck.
• Plug in pressure washer. 
• Reset breaker or replace fuse.
• Push "RESET" button. 
• Turn the motor manually.                
Low water pressure or no 
water pressure
• Insufficient water supply.
• Adjusting valve seal is worn out. 
• Water inlet is clogged.
• Pump sucking air from 
  Connections or hoses.
• Leakage on water outlet.
• High pressure hose too long.
• Valve o-ring worn out.
• The valves are dirty or blocked.
• Seal worn out.
• Turn the motor manually.
• Min inlet water pressure 20L/min. 
• Check and /or replace new valve seal.
• Clean the water inlet filter. 
• Check that connections and locking ring 
  are well tightened.
• Wrench the water connector again. If 
  necessary, change a new outlet hose.  
• Use pressure hose less than 30 meters. 
• Change new o-ring.
• Check, clean or replace new valve.
• Change water seal.
Detergent injection system 
not working
   
• Detergent filter is clogged. 
• Detergent too thick.
• Detergent stocked in nozzle head.
  
• Clean filter.
• Dilute Detergent with water.
• Clean the nozzle or replace new parts.
Water leakage in pressure 
pump
• Connector not connected well.
• Water seal worn out.
• Pump housing and/or other parts
  broken.
• Wrench the connector & make it connected
  tightly.  
• Change water seal.
• Change parts.
Unstable pressure
• Nozzle being clogged.
• Pump inhale air. 
• Valves dirty, worn out or stuck.
• Sealing worn out.
• Check the nozzles. 
• Check if all connections are airtight. 
• Clean or replace. 
• Check and replace.
When you turn the switch 
ON, the engine buzzes, but 
it does not start. 
• Pump is stuck due to dirt, mineral 
  build up, or ice. 
• Net voltage is lower than the 
  minimum suggested voltage. 
• Unplug unit. If temperature is below 
  freezing do not use. Thaw in a warm area.
• Check the electric installation is suitable. 
TROUBLE SHOOTING
15