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No hot water when Ravenheat 84E? on but hot water when the CH is on?

My Ravenheat 84e/t has stopped giving out hot water. I can only have hot water when the system is fully operational (turned on). No hot water directly from the tap. It has been suggested that the Diverter Valve needs replacing which sounds costly. Any ideas or suggestions!

Lyn
October 2010

Ravenheat Heating, Home Heating Systems Hot Water Ravenheat 84e Hot Water Ch

Try thermistor/sensor.Disconnect wires and test with ohm meter it should be about 14ohms i think

Del
November 2010

I had this problem it was a rubber seal on one of the valves seal cost £10 and cost £80 to have it replaced

Yvonne
November 2010

I suggest you listen to the initial suggestion, sounds like the diverter valve.

Carefree
October 2010

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No hot water when Ravenheat 84E? on but hot water when the CH is on?

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