Riello 40 oil fired burner.

Discussion in 'Plumbing and Central Heating' started by DIYDel, 11 Oct 2012.

  1. DIYDel

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    My Warmflow boiler with a Riello 40 pressure jet burner has been fine for 18 years. It is controlled by a lifestyle programmer.
    Now it will not power up. Turning on the power at the fused spur supply results in a blown fuse. A multimeter across the boiler supply terminals gives a reading of about 30 ohms. Seems a bit low? No other obvious problems with the control box, capacitor or wiring. What sort of resistance should there be across the motor windings??

    Any ideas? Help!!!
     
  2. oilhead

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    your problem can be with anything that is switched on at the same time as the burner; pump, motorised valve, thermostats etc. isolate the boiler and see if fuse blows. The burner is the last in line. To test the motor, disconnect the wire from terminal 6 of the base and put it to the live feed without the control box in place.
     
  3. BampotDelta4

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    If you think the fault is at your boiler Del & you have a multimeter, have you tried a simple continuity test on the L or Sw/L to earth, on the appliance only. If the boiler has a faulty component that's shorting, that'll pop your fuses.
     
  4. dcawkwell

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    Most likely cause is usually the central heating pump.

    Disconnect that for a start and go from there.
     

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