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Ah, interesting; you mention a filter that needs changing. I'm not aware that my system has a filter- will investigate. I don't expect a reply from VA until after the weekend so check back then. Best regards

Thanks. It's a Vent-Axia system. There doesn't appear to be a timer but I have now emailed VA technical department for advice. Regards

How do I delete a thread I posted in error?

I have a heat recovery system in my flat. There are ventilation bosses in the kitchen and both bathrooms that are ducted to a single fan located in a cupboard in the hall. I understand that ventilation is important but the b....y fan runs all the time and is quite noisy. It's particularly...

Mine is on the cold water supply which in turn affects the pressure of the hot supply. I needed to reduce it to try to stop violent hammering in a hot tap when it is opened. I have tried to cure the water hammer by replacing the tap and fitting a shock arrestor but it hasn't worked so the only...

I've figured it out - it's the screw that adjusts the pressure so no need for G3 guys or you to get stressed!

Why? Surely this forum is to offer advice and not only to qualified plumbers? All I want to do is reduce the water pressure. Why would that be considered an unacceptable risk if there's an available adjustment on the valve?

I want to reduce the mains pressure by adjusting the valve, see photo. I've tried putting a spanner on the grey cap held in place with a screw but was unable to shift it. I'm not sure whether I should try to remove the cap or whether I should just use a spanner on the outside of the cap...

Thanks. Will check out the bell box battery.

My Accenta security alarm has two external boxes - one at the front and one at the rear of the house. The battery is only 2 years old and I have checked its condition and it's holding the charge. Recently and again last night the box at the rear of the house started emitting a loud chirping...

I have a Bristan recessed shower with a Sirrus wax thermostat. Is there a way to test the thermostat e.g. put it in a bowl of hot water? The reason I ask is because the shower is only luke warm. I have followed Bristan's instructions for servicing the shower unit and although there is hot...

Will it be necessary to replace the whole flue? I ask because it will be a challenging job to do that as it's a second floor flat and it would require scaffolding if the whole flue has to be replaced. If it's just an inner section that would be much easier.

Thank you.

Thank you for the latest comments which offer reasonable explanations as to what may be the cause and therefore what to look for. I will get a heating engineer ASAP to investigate further and fix the problem. Regards to all.

OK. So how common is it for condensate to rot the seals i.e. how long should they last? Why do some rot and not others? Is there something that needs to be done to stop them rotting? Does condensate differ in its concentration and why would that happen? Looking for more solutions here.

What are the couple of reasons?

OK but why would the seals leak? How do I ensure they won't just leak again?

I have a seven year old Glo-worm 18hxi gas boiler in a second floor flat; the flue exits sideways onto a south west facing wall. A recent Gas Safety check reported that 'Flue has been leaking above boiler'; 'needs new flue' I have only just now discovered that other flat owners had reported...

Thank you. Will look for a quarter turn tap that won't look too out of place with the bath tap!

I get occasional violent, very violent, water hammer when turning on the hot water tap located the furthest point from the hot water cylinder which are both on the first floor. When it occurs I quickly turn the tap off and wait a few seconds then try again. The hammering may occur again but...