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pulsacoil 2000 wont heat my water

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pulsacoil 2000 wont heat my water Empty pulsacoil 2000 wont heat my water

Post  sliceofcake77 Thu Apr 29, 2010 8:18 am

Hi my friend has a pulsacoil 2000 which has been on the blink for sometime now, starting with what seemed as sensor failures so we changed then both.

Then we found the pump was faulty so we changed that & the compression fittings above & below it.

Now the red light flashes to say its working ok, 2 then nothing then 2 etc. There is power to both immersion heaters & both seem to be working & the heat exchanger heats up.

It still only heats up the water to barely warm.

Does anyone have any idea's as its driving us mad now !!!

sliceofcake77

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Join date : 2010-04-02

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pulsacoil 2000 wont heat my water Empty Re: pulsacoil 2000 wont heat my water

Post  Mike the Boilerman Fri May 07, 2010 4:39 pm

Hi sliceofcake77,

Sounds like scale in the heat exchanger to me but can't be sure without answers to a load of questions:

1) Did this problem start suddenly or did the hot water get cooler over a matter of weeks?

2) Is the pump actually running when the hot tap is running cool?

3) If YES to 2), what is the voltage at the pump terminals when the pump is running?

4) Is the water level in the header tank correct?

Cheers, Mike

Mike the Boilerman
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pulsacoil 2000 wont heat my water Empty Sounds like calcium build up on the PHE circulation side

Post  sunny.sahdev Thu Oct 17, 2013 5:41 am

Sounds like calcium build up on the PHE circulation side. Confirm the pump is spinning and you installed a grundfos 15-50x18

sunny.sahdev

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pulsacoil 2000 wont heat my water Empty Re: pulsacoil 2000 wont heat my water

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