Ecotec 937 Storage Tank sounding like an aeroplane

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3 Sep 2005
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The Ecotec 937 storage tank seems to sound like a heavy aeroplane overhead whenever it kicks in at the moment.

The system had to be drained recently for a leak and refilled but now whenever the storage tank charging kicks in its really noisy ??

Any ideas would be greatly appreciated.

Shady
 
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A mate reckons this might be air trapped in the storage pump unit and then air pockets around teh hot water circulation pump.

I have tried the P0 bleed test programme but does anyone know if there is an easy way to acess the hot water ciculation pump to bleed the pump itself or is it enclosed inside the storage pump unit ?
 

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