Hi Paul, thanks for asking, any part that has been damaged should not be used again, far too many installers waste time and money putting ACID and hope it works, why? We have to find out why this happened and fix it so it does not happen again. What does happen is as I just mentioned they get paid and go NOT solving the fault. Most important point, if that was YOUR PARENTS boiler would you do the same or replace with the latest version, so why do that to a paying customer, then guarantee if it fails within 4 years the installer has to replace FOC, Consumer Act 2015, should last a reasonable time. Hope that explains why I didn't get rich by putting old cheap iffy parts into a boiler. George staszak 🤩👍
Merry Christmas George. Thanks for lovely video. When checking expansion vessel pressure, eg 1 bar up to 3 bed semi, 1.4 for anything bigger.. can this be done with the system still filled with water? So 1 / 1.4 bar of pressure in the system, and testing pressure in expansion vessel using schrader valve. Regards
Hi Mohit, Thanks for asking, the system can be full only the Combi boiler has to be drained empty to pump air. The problem is very few boilers come with a drain valve, don't know why because we all know we have to replace a water part, no manufacturer listens to installers, this should be on EVERY Combi boiler. Most use the PRV which then gets ruined another part sold. take care, George 👍🤩
Why cant the exchanger descalled? Thanks
Hi Paul, thanks for asking, any part that has been damaged should not be used again, far too many installers waste time and money putting ACID and hope it works, why? We have to find out why this happened and fix it so it does not happen again. What does happen is as I just mentioned they get paid and go NOT solving the fault. Most important point, if that was YOUR PARENTS boiler would you do the same or replace with the latest version, so why do that to a paying customer, then guarantee if it fails within 4 years the installer has to replace FOC,
Consumer Act 2015, should last a reasonable time. Hope that explains why I didn't get rich by putting old cheap iffy parts into a boiler. George staszak 🤩👍
Merry Christmas George. Thanks for lovely video. When checking expansion vessel pressure, eg 1 bar up to 3 bed semi, 1.4 for anything bigger.. can this be done with the system still filled with water? So 1 / 1.4 bar of pressure in the system, and testing pressure in expansion vessel using schrader valve. Regards
Hi Mohit, Thanks for asking, the system can be full only the Combi boiler has to be drained empty to pump air. The problem is very few boilers come with a drain valve, don't know why because we all know we have to replace a water part, no manufacturer listens to installers, this should be on EVERY Combi boiler. Most use the PRV which then gets ruined another part sold. take care, George 👍🤩
Thank you George. But is there any harm checking the pressure without draining the boiler? What effect does it have on the reading?@@mrcombiBedford
Yes of course, you will destroy the valve has then to be replaced and reading will be under pressure, not what we want. George @@mohitl1697