green-foam

Since the cable was cut and has been repaired I would suggest you start there. You could also check the connections for each alarm are the same.

Like you should have been, I was asleep at 02:00 so could not advise, I am assuming you have stopped it by now, all you can do to stop any smoke detector from chirping is change its battery. I don't expect you to have spare batteries in your house, although to be honest it is a good idea (and I do have new batteries around the house) you can take the detector down and take its battery out, then put the detector on the kitchen table, the idea being that you then change the battery and put the detector back, often I have visited houses and I see a backplate on the ceiling and no smoke detector, what use is that if there should be a fire? It is a good idea to change smoke alarm batteries once a year, and even better is to change all of them at the same time.

I would assume you have a single LED emergency light, normally they are green, but in a power failure they change to white. (See example images) If it is showing white that means the unit has no mains, or it has failed, I would check that it has mains first. Below are two images of the same light. Yes it is one LED it has been developed for sole use as an emergency light. When the unit has mains it lights up as a not bright green, in a mains failure it changes to a bright cool white and like other emergency lights, it will last for 3 hours. They are small and unobtrusive and can directly replace "down lights"

I am not there, can you be more specific please. What battery did you change, what "keeps going off" why did you decide to change the battery?

Did you mean to ask, "can you sue them for selling them to you"? For that answer you would need to seek legal advice, which this forum can not give.

If you could buy a fire safety label then "everyone" would do it just to say the item is safe, when indeed this may not be the case. You can however legally give it away providing you point out it has no fire safety label, or take it to the tip like everyone else does. It's a sad thing to do, but its down to liability at the end of the day.

Both would have sounded as they are interlinked. Believe it or not, it's not uncommon for smoke alarms to false alarm (Although in theory they shouldn't, it does happen) Sadly there is not possible to say "do xyz and you will be fine" as it depends on why one went off. (Being interlinked, one will cause the other to activate) But you should check the age of the detectors, they should be changed when they are 10 years old, also if they have standby batteries, how old are they? You should also clean them once a year (Vacuum cleaner and the crevice tool if you have)

I would suggest you "start again" and change the battery in one detector then switch the mains on, and repeat for each detector, it sounds like you have a battery / detector incompatibility problem. This is the easiest non technical way to find out, although somewhat tedious, and also check the age of all smoke detectors, the life span is 10 years.

Make and model of your smoke alarm would help (As would a picture)

As you had your windows open anything could have blown in (Carbon monoxide is colourless and odourless) and as it did not continue I would say it was a pocket of gas and nothing to worry about.

Sorry, but you really need legal advice which this forum does not offer. ?

Since it is building control have told you what you must do, would it not be a good idea to ask them why? since anything else is only a guess.

It may be the batteries are nearly flat and are only able to power the LED display but too flat to open the bolt. Have you tried changing the batteries?

Most** extinguishers are designed to last 10 years. All but CO2* should be discharge tested stripped down, inspected and re filled every 5 years. The downside is that the cost of doing this is often more expensive than buying a new fire extinguisher Click here Older fire extinguishers are sometimes kept and used solely for "live fire" demonstration purposes, is not unusual for one of these extinguishers to fail to work properly. *CO2 extinguishers it is 10 years and they need to be stretch tested too. ** Britannia make some that are 10 year service free.

You need a watermist extinguisher (as mention by Shawn 3 posts above yours.) Safelincs can supply water mist extinguishers, Click here

I would say it depends on what is in the contract. From what you have said the original batteries were used and the new panel "does not like them" The question is were new batteries allowed for? I have often seen it where the panel was changed, not the battery because the customer did not want to pay for a new one. To any one reading this it does sound silly, but I have had people tell me to my face (in a polite manner) that the old battery is fine and they do not want me to change it, (I advise them the battery should be changed, but that they will be charged) and 3 guesses what happens later. (So I used to write on the battery "customer declined new battery") Hence my opening statement.

How old are they ?

Why not ask your council and ask them?

As Tom already said, It's your choice.

The forum owners (Safelincs) fire extinguisher page can be found if you Click here

Since the windows were open, and your smoke alarm has never gone off before, the probability is that a "pocket of smoke" was blown in and that is what the detector detected, it was doing its job. If you are changing the batteries, its a good idea to write the date on them too.

Could it be that being above the oven it is NOT a smoke detector, but a heat detector, which would explain why it did not go off with smoke, but did when you pressed the test button?

You only mention one beeping. As you have to smoke alarms the same, what happens if you swap them over?

I am wondering is it flashing rapidly because the electrician tested them. Have you tried pressing the hush/test button?

Same question, make and model of detector please. (Also what is make and model of one on landing)