On 08/07/2024 at 10:21, green-foam said:

Sorry for the "late reply" (The way this forum works, all new posts are held for review and released on a Monday)

The Deta 1151 is obsolete and has been for a number of years. As they have no user serviceable parts, I would suggest you change it, as you are changing one, you should change all of them. I recommend the Aico brand Click me as these have a baseplate with dedicated (colour coded) space for the cables, very easy to install, have been around for many years (with no change in baseplate, unlike some.)

 

On 08/07/2024 at 10:21, green-foam said:

Sorry for the "late reply" (The way this forum works, all new posts are held for review and released on a Monday)

The Deta 1151 is obsolete and has been for a number of years. As they have no user serviceable parts, I would suggest you change it, as you are changing one, you should change all of them. I recommend the Aico brand Click me as these have a baseplate with dedicated (colour coded) space for the cables, very easy to install, have been around for many years (with no change in baseplate, unlike some.)

Thanks for the advice. Have I understood that the Aiko brand can be used as a direct replacement of the Deta 1151, avoiding the need for me to replace the baseplate? 

Not that replacing the baseplate is a big deal, but if I can avoid it, why not? 

If so, I guess it answers the question that has been on my mind - when replacing a wired interlinked network of smoke/heat detectors, must I stick to the same brand as existing units?

I guess the answer is no, or is it "it depends"? And if so, what do I need to bear in mind? 

Thanks! 

On 26/10/2024 at 15:10, Guest cri said:

Have I understood that the Aiko brand can be used as a direct replacement of the Deta 1151, avoiding the need for me to replace the baseplate? 

Hello Cri, you have miss-understood. I never said the Aico smoke alarm baseplate is compatible with the Deta Brand. I said

 

On 08/07/2024 at 10:21, green-foam said:

I recommend the Aico brand Click me as these have a baseplate with dedicated (colour coded) space for the cables, very easy to install, have been around for many years (with no change in baseplate, unlike some.)

Other manufacturers change the design of their smoke alarm and change the design of the baseplate accordingly. Aico have changed their smoke alarm design (slightly) and brought out new alarms BUT they all use the same baseplate

 

For clarification, I have attached a picture of an Aico baseplate and another brand of smoke alarm baseplate. When changing a smoke alarm that is interlinked with other alarms you should change all of them at the same time to the same brand as this avoids any compatibility problems and gives the assurance they will all sound when they need to.  The other thing to consider is that most smoke alarms require an optional baseplate to be ordered, Aico alarms do not require this as it is included in the box and is part of the alarm.

I should also point out that when mounted to their respective baseplate most smoke alarms are deeper than the Aico

 

 

 

 

 

 

 

 

 

Hi my heat detector has gone off, despite turning it off at the mains it still persists in going off. Is there anything I can do.

The way this forum works, asking on a bank holiday Monday means your question does not show for a few days.🤐

Assuming you have not damaged your alarm, turning it off at the mains is not a good idea, since that means you will be making it run on its battery.

You do not say how old it is, most smoke / heat alarms have an expected 10 year life after which they should be changed. Have you cleaned it (With a vacuum cleaner to remove any dust or insects?) As smoke / heat / CO alarms have no user serviceable parts, the only thing you can do if you still have problems is replace it.

Heat detectors, by their very nature, rarely false alarm due to the fact they are unaffected by steam, aerosols, dust, insects, etc. It will be running on battery until flat and is most likely to be defective - you should replace it with a new one - you can take it down whilst still noisy and until you can get a new mains detector installed it's advisable to put up a cheap battery only detector to keep you covered.

https://www.safelincs.co.uk/smoke-alarms/

I have Deta smoke alarms and in the kitchen a duel CO2 and smoke alarm. I have a new build house which has only been built 2yrs. Last night the alarms went off and I wasn’t sure how to stop it. I pressed and held the button in which seemed to work. Is this what I need to do? This is the first time it has happened

Should I change all batteries now?

Can you explain the process please?

Hello Joanne, since you do not give the model number of your smoke alarm I can only give generic advice.

In smoke alarms that have a replaceable battery said battery should be changed once a year. (Write the date on it when its changed)

In smoke alarms that do not have a replaceable battery you have to change the whole alarm when the battery expires. This could be anything from 5-10 years (Depending on model)

I should also mention that there is no such thing as a domestic CO2 alarm*. CO2 is carbon dioxide it is what makes fizzy drinks fizzy. It is also what you find in these.

Image of CO2 Fire extinguisher

(There is a technical problem with uploading images)

It's a carbon dioxide fire extinguisher. Carbon dioxide is written as CO2

Carbon monoxide is a gas given off when most fuels are burnt, but there is not enough oxygen. Carbon monoxide is written as CO

A well-designed combined smoke and CO alarm will easily differentiate which sensor has activated

Some alarms have a "hush button" to silence the alarm, some you press the test button others you have to wait until the air clears (Or waft something under it) it depends on which model.

Most carbon monoxide alarms do NOT have a replaceable battery, some have a life span of 7 years, again, depending on model.

Depending on which caused the alarm determines what you should do. In either case you should evacuate everyone, not try to silence the alarm.

* Some industries do use a carbon dioxide alarm to check for leaks of CO2