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Hi there, I have a megaflo unvented system, which is 15years old. over the years it as been fine, with a few issues, I.e new boiler 5 years ago, new filling loop, and a replaced expansion vessel, which at the same time 2 years ago the 3 bar pressure relief (RWC) cartridge was changed. However...

Question. Just had the boiler serviced by Worcester Bosch Engineer (Greenstar 18i), but he tells me that my accredited (WB) installer, as made a pigs ear of the condensate drain. It drops internally in the garage (boiler in garage) outside and into a soak away. The problem is the soak away is...

Hi. Unvented megaflo with a Worcester Bosch regular green star 18i boiler. Megaflo 10yrs old , boiler 2years.. All worked fine for two years, until recently, system pressure dropped, local guy said it was expansion vessel and removed re fitted new vessel. System back up and running.. But...

Seems and odd question but thought i'd ask. Local heating engineer tells me no problems, but here's my question. System is unvented, Megalfo (10yrs old), 4yr old WorsBosch boiler. Had a problem with pressure creeping up. eventually put to bed by changing the filling loop. When fitted system...

Hi. I hope someone can shed a little light as too what the problem we have just developed. We have a Megaflo unvented system, with a 2 year old Worcester Bosch boiler, serviced every year. The system as worked perfect for years with water pressure sitting at 1 bar with no problems. I have...

Hi. We have a sealed unvented megalo with an ideal minimiser boiler which are both 10yrs old. Last winter we had a problem with dropping pressure, We had 3 x local corgi plumbers to look at the system, between them they changed auto vent, expansion vessel and the pump, i have also had all the...

Back again. Recap: Megaflo H/W cylinder , Ideal boiler Minimiser SE 9 yrs old. Story so far and 3 plumbers.. and about £120 quid down. Start December system started losibg pressure one day. Will lose 1 bar in 2hrs when boiler on.. Diagnosis 1 - Autovent - Changed Diagnosis 2 - Pump -...

Here again.. Boiler Ideal Minimiser SE with megalflo Water Heater. System as been losing pressure, ever since the pump was changed early December. Local engineer changed pump (grundfoss selectric), one week later we stared losing pressure, same engineer said it was pressure vesse, so we...

Continued from my last post.. (no more replies) Unvented system losing pressure..! I have checked with car pump pressure of expansion vessel = 0 bar, when i blow it up, the gauge on the pump slowly fals back to 0 (sytsem pressure acording to RWC (maker) should be 0.5bar). Could the fault be...

Hope someone can help. We have an "Ideal Minimiser SE" Boiler and a Megaflow Unvented system. This has been working fantastic for 8yrs and the boiler serviced twice in this time, (last time engineer said everything was fine and did not need doing!). At the begining of December the boiler tripped...