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heatline s24 combi boiler

Joined
5 Dec 2008
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United Kingdom
have a heatline combi boiler works ok on ch but not on water any one any ideas of the fault
 
If hot water going hot/cold then blocked secondary heat exchanger.

If no DHW at all a diverter valve fault. Probably a leaking gland failed the actuator motor.

Tony
 
the diverter valve is leaking where it attaches to the hydroblock
 

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