- Joined
- 3 Feb 2019
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Hi I have a 10yr old Alpha cd28c boiler that has given faultless service until last week.No hot water.Engineer diagnosed faulty diverter valve and motor.This was replaced and all was well for a day!Then the boiler would lose pressure over the 24hr period and would not start up until water was added via the loop.Engineer came again and diagnosed leaking Pressure Relief Valve.This was replaced and now boiler will lose all pressure when off within 3hrs.Also to note it looks as though water is still leaking out of PRV external pipe.Any guidance would be much appreciated as I will have to call engineer again and it,s all getting rather expensive.