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Replacing photoresistance photocell on Riello RDS boiler

Discussion in 'Plumbing and Central Heating' started by weefunker, 27 Dec 2020.

  1. weefunker

    weefunker

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    I have a faulty photocell on my boiler, my plumber friend told me to clean it when the boiler struggles to fire. It has gotten to the point today now where that no longer works. The lens has been diming for some time now, cleaning it no longer gets the boiler firing again.

    I have a spare one sitting here and I am considering opening up the panel and swapping the photocells out. I am a software engineer, not a hands-on engineer but this seems simple enough from reading the boiler manual. What could go wrong when I try to fix this?

    Turn the boiler off, unsure if the mains electricity needs to be off too?
    Unscrew the top panel where the photocell wire leads to
    Swap the two parts
    Close it back up
    Power it up and pray?
     
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  3. BoilerBob

    BoilerBob

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    Easy job just unplug and plug in. Bob
     
  4. weefunker

    weefunker

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    You were right, very easy job indeed. Fixed and working now. Thanks Bob!
     
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    DIYnot Local

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