Generator Water Leaks

Generator water leaks can happen

Potential causes of water leaks are normally detected prior to leaks happening and both prevented and repaired during regular servicing.

However, if you suspect that you have a water leak or may have a non identified water leak then the following will need to be actioned immediately:


  • Ensure the generator is turned OFF whilst you locate the water  leak.
  • Do a visual check of the entire generator, especially around the area of the leak, check the radiator, looking for cracked hoses, non-tightened jubilee clips etc.
  • Especially the radiator area. Check the welding joints at the top of the radiator and the bottom connections where the rubber hoses attach. Check for visible corrosion and weak joins. Check the radiator cap is secure and tightened.
  • Then use your spill kit to soak up the water leak
  • Check the integrity of all fuel hoses and tighten hose clamps if necessary. Touch the hoses check for weaknesses & perishing of rubber.( Finger Press)
  • Inspect the fuel to ensure that NO water has entered the Diesel Fuel.
  • If you still can’t find the leak- Top up the radiator to maximum and start the generator again.
  • If there are no signs of a water leak this time, then the water was only caused by a previous spill or rainwater leaking in through a hole in the roof of the canopy.
  • Should the water leak re-appear then follow the above advise for a second time. This time it may be the thermostat has failed causing the water temperature to become HOT and force its way out of the coolant system -Replace the thermostat with a new genuine manufacturers part.
  • Then re-start the generator
  • If you still cannot find the water leak; Then STOP the generator to avoid damage to your engine and call for local generator engineer to visit site

The majority of the above can be avoided by PowerContinuity preventative service and maintenance. Call 0845 055 8455 for further assistance. We’re here to help 24/7

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