Dear All, I have an annexe with a heatrae sadia multipoint electric cylinder with external expansion vessel supplying one tap and shower. When I turn the hot tap on it loses pressure after 20 seconds or so. The thermostatic shower also often loses pressure and I have to keep turning the temp up and down to continue the shower. I have inspected the PRV and the filter is clean, i replaced this about two years ago. I have also pumped the expansion vessel to 3 bar and it has held pressure now for weeks. Any ideas what else I could try? Should I replace the PRV cartridge again? Many thanks in advance.
Low/no hot water pressure
- Thread starter tonyall
- Start date
What size is the cylinder? If it's a direct unvented cylinder greater than 30L then it really should be serviced by a qualified individual, they aren't really DIY territory.
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