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Problem with floor-standing fan AFTER replacing capacitor

Discussion in 'Appliances' started by AVR2, 13 Jul 2019.

  1. AVR2

    AVR2

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    Our floor-standing bedroom fan was displaying the classic symptoms of a bad capacitor, so I replaced it. Unfortunately, that hasn't fixed the problem - or at least, it hasn't fixed it permanently.

    Sometimes when you switch it on, it will start perfectly normally. Other times, the blades will barely move, so you have to remove the grille and spin them by hand to get them started. There doesn't seem to be any obvious pattern for the failure.

    It doesn't seem to be a lube issue, as the blades turn smoothly with no resistance.

    The fan is over 20 years old now (although it only gets used during the warmer nights in summer), so could it be some kind of internal wear that only has an intermittent effect? Once the blades are spinning, it will run as long as necessary without problems.
     
  2. HERTS P&D

    HERTS P&D

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    20 years old?? you have had your money out of it.

    Andy
     
  3. Harry Bloomfield

    Harry Bloomfield

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    Nothing wrong with fixing things up, to get a bit more value and life out of them, plus it is a learning experience with a nice warm glow if you succeed.

    Are you sure the capacitor value is correct, tried a slightly higher value, was it a new capacitor which you tried it with?
     
  4. AVR2

    AVR2

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    Capacitor is brand new and exact same value as the old one - 450V 1.0uF.

    And I'm interested to know what could be causing it to *intermittently* suffer starting issues. Although short of stripping the entire motor down, I suspect that won't be easy to ascertain, given that the capacitor is the usual cause and it clearly isn't in this case.
     
  5. Harry Bloomfield

    Harry Bloomfield

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    With not much to loose, is it worth trying it briefly with both caps in parallel?
     
  6. jj4091

    jj4091

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    Is it single or multi speed & have you tested voltages?
     
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