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Have the banging crashing noise (assume air / black ****). I can isolate boiler F&R with a bit of jiggery-pokery to mains flush or power-flush boiler in situ or is it just wishful thinking and doomed.
Pump seems ok, cleaned impeller and is grundfos 180. bunged up auto air vents to eliminate air being sucked in.
So the question is. Has anyone successfully flushed a G-worm Hxi main heat exchanger?
Pump seems ok, cleaned impeller and is grundfos 180. bunged up auto air vents to eliminate air being sucked in.
So the question is. Has anyone successfully flushed a G-worm Hxi main heat exchanger?