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Thanks for all the replies. We have warmstart turned off (it annoys us during the night) and don't have any TRV's so can count those out of the problem. I also considered the 24 hour startup and tried turning the boiler off electrically during the day thinking that the 24hour time would...

Yes I do live in a bungalow. All of the pipework is under floor and horizontal. I have wondered if it was a pipework bang, but why would this only happen when the frost protection activated? Where is frost stat? Is it built into the pcb?

The diverter valve is the new type with oval shaped ball. The original had the sticking ball problem. I don't know if the pcb is original as the boiler was installed before we bought the house. I think i know the clunking sound you refer to which happens when the valve changes, but this is not...

I asked this question last winter, but no one seemed to have the answer, so as winter is here again I thought I would give it another try. Boiler is a Vailant Turboxmax 824E about 8 years old and generally working ok. The boiler is located in an attached garage on a single brick external wall...

Had a new gas hob fitted and installer pointed out that gas supply was not earth bonded within 600mm of meter. From the meter there is approx 2metres of lead pipe which then joins to copper where the earth wire is attached. Some questions .... Is it possible to bond to lead pipe or will I...

Thinking of replacing my Vaillant Turbomax boiler. The boiler is located in the garage attached to my bedroom and from the bedroom we can hear the boiler firing up. One of my main requirements in choosing a new boiler is low noise. So hopefully it won't disturb our sleep! Can you recommend...

Sorry, I should have said that the boiler is a Vaillant combi turbomax fitted with Vaillant horizontal flue. If it is illegal to modify a flue, how can they add 90degree bends to the end of the existing flue? I understand that there is also a vertical flue option. The garage has a...

My heating system has been installed for 8 years, and i have lived in the bungalow for 4 years. Last week my next door neighbour complained that when he opens his bathroom window the fumes from my boiler flue enter his bathroom. (I don't know why its taken him 8 years to complain about this!)...

How about one of those bandages you get to repair car exhausts?

Re your first problem, Vailants have a warm start facilty which basically heats up the water in the boiler so that when you turn on the hot tap you get instant hot water. this happens every hour. You can disable this. Check your instruction manual, but on my 824 combi, you turn the hot water...

Boiler is a Vaillant Turbomax 824 installed in the garage and therefore subject to low temperatures. The boiler is quite close to our bedroom, so we can hear it fire up. On a cold night we occasionally hear the boiler fire up and within a few seconds theres a sort of 'bang' and rattling of...

If this has happened in the last few days, it could be the internal frost protection in the boiler particulalry if the boiler is in the garage. I think most modern boilers have two stage protection, which initially just runs the pump to keep the water moving, but if it gets colder the second...

So does this mean that the pump is not turned on and the hot water just circulates within the boiler? If this is the case I would have thought that it would only take a few seconds for the water to heat up. Does this indicate a fault in the boiler?

Have a Vaillant Turbomax combi boiler which is located in an attached garage and of course is exposed to low temperatures. On a frosty night the boiler starts up (presumably because of the internal frost protection) but after a few seconds there are several banging / knocking noises and it...

If for example I installed a thin piece of wood vertically approx one inch from the joist thus holding back the insulation and leaving an air gap above the cable. Would this be satisfactory?

I know there are several other postings on this topic, but they always seem to refer to lighting cable which is not usually too much of a problem, or shower cables which must definitly be laid over loft insulation. My query relates to the ring main. As i live i a bungalow, the ring main is...

I need advice ! Just had my driveway block paved and am somewhat disatisfied with the quality if the work. I think there are two areas where the work is not up to standard. 1. The excavation and laying of the sub base occured whilst I was away from home, so I did not see exactly how much...

Thanks for your replies. I should have mentioned that my drive is being widened for two cars and my main concern is actually driving over the pipe. Is there any chance of the weight of the car fracturing the pipe?

Not sure if this is the right forum, but here goes .... I live in a 1970 built house and am having my drive block paved. When the excavator arrived I advised him where all the services entered the house. The gas service pipe enters on one side of the integral garage, so he advised me he would...

My daughter lives in rented accomodation and the central heating boiler has developed a problem - basically the pilot light will not stay on. Her landlord called in the 'expert' yesterday who spent a few hours tinkering with and at the end of the day declared he needed to get a new part and...