Goto go and look at a boiler sometime this week,only managed a 5 min check on it today cust complaining of hot water not lasting very long,flow switch,diverter valve seemed to work ok with thermostat set to max water wasn't that hot,a reducement of inlet pressure made it hotter but reduced flow rate,the timer on boiler was not working at all,if the timer they are using now is only switching on ch could it be a problem that the heatstore is not being heated up?Was on my way out of door after fitting a new oil pump and they suddenly remembered this fault,so didnt have time to investigate properly with regards to programmer being used,so thinking maybe programmer or heat exchanger? any ideas??
heatslave 15/19 oil-fired combi running out of dhw?
- Thread starter cjb1971
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If it's the plastic type of diverter head. Twist and take off. (you will have to loosen off the control box to do this) You will see the top of the diverter cartridge. My bet is that it's stuck about half way. Pull it and it should pop in to the HW position (at rest). It's best to drain the boiler down and replace the diverter cartridge or they can be removed and given a good clean lubrication with silicone grease.
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You mean 3 port? Probably the synchron motor gone. The early ones motored over for HW.
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