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boiler not starting

Discussion in 'Plumbing and Central Heating' started by mtm, 22 Oct 2016.

  1. mtm

    mtm

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    Hi I have a Worcester greenstar camray boiler. Has been working fine but noticed air circulating around the system. I knew I needed to bleed radiators and probably top the system up with water. Today the system failed to start and sure enough no pressure on the gauge so assume cut out because of this. I topped up pressure to just over 1 bar and vented the radiators. The boiler wont start. There is no reset button on the boiler and the burner has not locked out so I am now lost as to what could be the problem. Ideas welcome please.
     
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  3. gigz

    gigz

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    Try topping it up a bit more. Not sure on your model but some incorperate a pressure switch that sometimes gets a bit of crud in them.
     
  4. mtm

    mtm

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    topped up to 2 bar no joy
     
  5. gigz

    gigz

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    There is a reset button on the underside of the front panel
     
  6. mtm

    mtm

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    I cant find the reset, but switched the time cock to hot water and the boiler fired. So I replaced the room thermostat and still no central heating. Now really confused.
     
  7. Terrywookfit

    Terrywookfit

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    Is the circulating pump running.
     
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  9. gigz

    gigz

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    Wont need resetting if the hw works. Probably is stat or timeclock related. Contact on heating selecter could be faulty, try switching between heating/hw a few times.
     

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  10. gigz

    gigz

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    Ignore the image, it wont delete ???
     
  11. mtm

    mtm

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    yes pump is running so agree it may be time clock related. Strange though as all was fine until the low pressure issue today. Guessing I need to replace the time clock next
     
  12. gigz

    gigz

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    Expensive guessing game mind.
     
  13. Madrab

    Madrab

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    buy a circuit tester, probably end up cheaper (y)
     
  14. dilalio

    dilalio

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    Energise heating on terminal on time clock with a loop is even cheaper (y)
     
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