green-foam

If the alarm indicated low battery, I would suspect it needs a new battery. Since the other CO alarm remained silent, and sounded when you pressed the test button, this would indicate a problem (Low battery?) with the first CO alarm. A few questions. How old are they both? When did you last change the batteries? What is the make and model of each CO alarm? I should also point out that CO2 is what makes fizzy drinks fizzy, it is also what CO2 fire extinguishers are filled with. Carbon Monoxide is written as CO

Would it not be an idea to ask the course provider exactly what it does and does not cover?

Only a guess, water damage.

No. If you did then you would not know if it is powered or not, which is the function of the green LED

The labels would have complied at the time, but it is up to the charity shop if they will take them or not, so I suggest you ask them and find out.

Since no one has yet replied......? (Just my opinion) AFDD's only became a "must" in March 22, anything installed prior to then will NOT require an AFDD To confirm a site has AFDD's you will need to open the consumer unit lid (That's lid, not cover) Should you really be going that far? What will you then do if none are installed? As I said prior to March they need not have any, so your first problem would be you need to establish when the consumers unit was installed. Suppose it was installed last week in a care home and it has no AFDD's all you can do is point out it should have them but doesn't have them when you looked. I would also suggest that a lot of places will not have them purely due to cost, one single AFDD costs £100* which is ten times as much as an RCBO also anywhere that "must" have AFDD's will require one for each circuit of sockets*, and they are known to NOT WORK 100% of the time on final ring circuits*, and since most sockets are on ring circuits........... Give it another 5+ years and the price comes down then yes, but until then....... * I checked on manufacturer's website.

It would be worth making sure the devices are clean and dust free. You should also test them to make sure they are working, another thing to check is how old are they? and when did you last change the batteries.

Not wanting to be pedantic, but this is a Fire Safety forum, not a building safety forum. I can only suggest you ask the building safety regulator/local council/Building control

..............and the burglar alarm activates.

Yes, too expensive, and creates more problems than it would solve.

In short it is good advice, but the electrician is wrong in what he said and probably saying so to get extra work.

The green LED indicates that mains is present, the red flashing LED should flash once every 40 seconds to indicate it is working. Deta give their smoke alarms a 5 year guarantee. So I can only suggest you get in contact with them.

If the fire alarm is addressable then it may be possible to add an I/O interface. But it would be a job for the fire alarm company to do. It also depends on the make of fire alarm as to if it will accept an I/O device.

Which alarm was it? Make / model, how old is it, when did you last change its batteries?

You do not say make / model of your CO alarm, but generally beeping every 30 -90 seconds means time for a new battery. Some CO alarms (and the one I had) only last 5 years. When did you last change its battery?

If you get the answer you seek, then what? The surveyor is clearly on the side of caution (But it may be the foam is flammable) I would also ask, since some of the tiles have hairline cracks how much would a new roof with under felt cost and how much would dry ice blasting cost?

Without knowing who made it / its specifications it is not possible to tell remotely anything about it.

Thanks for that Bif, it will do for reference, but no one has asked before and I should guess carlos has since found the answer, as he asked back in April 2020 ?

If it has now stopped bleeping, and still works when you press the test button, you have had a false alarm.

Smoke alarms (That you have in your home) are NOT suitable for use in commercial premises. You will need to get a Fire Risk Assessment carried out.

I see you have been answered on "my builder" 8 days ago (This forum is getting very slow lately) ?

Does this risk assessor provide your insurance? No? Check with your insurance company what is and is not permitted. I can tell you there is no such thing as a commercial grade extension lead for permanent use. Extension leads are designed for temporary use. There are a few guidelines when it comes to using extension leads. The cable should be suitably sized for the current it is to carry. (In other words, not too thin) If it is reel mounted it should be fully unwound when using a high load (Anything with a heating element, kettle, hairdryer, electric heater) if you don't the cable will overheat and cause a fire. (It's a very common problem with extension leads) Never plug an extension lead into another extension lead. Never run an extension lead under a carpet (It will wear out, short circuit and cause a fire) Never use an extension lead near water, and don't leave one outside. Ideally you should move what ever you have plugged in closer to the socket (So no extension lead required) or have extra sockets installed by an electrician. Extension leads make excellent trip hazards too.

Sorry, but there have been long delays with this forum recently. Yes. But you should still carry out a test as per manufacturer's instructions to establish does the device still work.

You might want to try the BAFE website Click me

You need legal advice which this forum does not offer.