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PostPosted: Sat Mar 05, 2011 3:45 pm 
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i have a betacom 30 and when the selector switch is in heating mode the boiler fires up and is fine and when you run the hotwater tap nothing happens in continues to circulate the heating,when you put the selector over to the hotwater only nothing happens, the green on light is on and no fault lights are on,pump dont run fan dont run nothing,like there aint even a demand for hotwater, i think the diverter is fine cause when i put the heating on and push the pin on the diverter in manually it goes round the hotwater and not the heating and when i release it vice versa, takes a while for the hotwater to get hot so i think i need to change the heatexchanger but i think it needs a pcb to sort the hotwater out, before buying one does anyone have any ideas or checks i could do first

thanks


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PostPosted: Sat Mar 05, 2011 4:11 pm 
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The heating guys will be around but I would say the flow sensor or diverter valve.


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PostPosted: Sat Mar 05, 2011 5:13 pm 
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First thing I would check is the DHW flow sensor, as your boiler sounds as if it does not even know a hot tap is being run.

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PostPosted: Sat Mar 05, 2011 5:37 pm 
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It will be the DHW flow sensor very fiddly on this boiler



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PostPosted: Sat Mar 05, 2011 7:36 pm 
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is that on the clip on the side of the diverter valve,i am a gas engineer but i do install never breakdown so appreciate the advice guys, can i test that by linking it out and seeing if it works or would you just buy one and give it a try first, you know how much one would be about £20 at a guess?

cheers guys


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PostPosted: Sat Mar 05, 2011 8:13 pm 
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GWORM 0020061608 FLOW SENSOR

£41.39 + VAT trade at Parts center

£69.57 + VAT retail

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PostPosted: Sat Mar 05, 2011 8:34 pm 
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dave if i linked out the flow switch would the boiler then fire in theory if it was the flow switch or not the case

cheers


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PostPosted: Sun Mar 06, 2011 11:42 pm 
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The flow sensor is a turbine which gives a succession of pulses from the Hall effect sensor when activated by the permanent magnet on the rotor rotating!

Shorting together any of the three wires is likely to do damage to the PCB.

Tony


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PostPosted: Mon Mar 07, 2011 12:05 am 
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as this is really a heatline boiler....http://www.abcotuk.co.uk/Product.aspx?ProductId=P931&catid=C2

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