Carbon monoxide alarms

Author
Discussion

SPR2

Original Poster:

3,182 posts

196 months

Monday 15th September 2014
quotequote all
Should you be able to turn these off?

Rickyy

6,618 posts

219 months

Monday 15th September 2014
quotequote all
Not that I've seen and not sure why you'd need to?

SPR2

Original Poster:

3,182 posts

196 months

Monday 15th September 2014
quotequote all
Mine went off early hours this morning and was advised to go and stay outside until emergency services arrived. They are an extremely piercing sound which disturbed neighbours too.

Ray Luxury-Yacht

8,910 posts

216 months

Monday 15th September 2014
quotequote all
Um...so it did it's job? I.E detected some CO?

Like smoke alarms, they're there to save your life. Hence shouldn't be turned off?!

The only other thing you might want to consider, if you think it was a false alarm, is to get a CO alarm with a display.

Mine has one, a digital display which will show how many PPM of CO it has detected should it go off.

Nice to walk past it and see it on '00' all the time biggrin


BFG TERRANO

2,172 posts

148 months

Monday 15th September 2014
quotequote all
Ray Luxury-Yacht said:
Um...so it did it's job? I.E detected some CO?

Like smoke alarms, they're there to save your life. Hence shouldn't be turned off?!

The only other thing you might want to consider, if you think it was a false alarm, is to get a CO alarm with a display.

Mine has one, a digital display which will show how many PPM of CO it has detected should it go off.

Nice to walk past it and see it on '00' all the time biggrin
If it's reading "00" all the time bin it and buy a new one.

SPR2

Original Poster:

3,182 posts

196 months

Monday 15th September 2014
quotequote all
It was reading 15 so they checked all round and disconnected my gas. When they left the readings had dropped to 7. I felt a bit guilty when 2 appliances arrived but they assured me I had done the correct thing.

Simpo Two

85,343 posts

265 months

Monday 15th September 2014
quotequote all
BFG TERRANO said:
If it's reading "00" all the time bin it and buy a new one.
Mine does.

The only exception was once when I left the grill on with the over door shut and to my slight shock it went up to 35.

Brother D

3,716 posts

176 months

Monday 15th September 2014
quotequote all
BFG TERRANO said:
If it's reading "00" all the time bin it and buy a new one.
Why is that? If you only have a balance flue boiler and no other internal gas appliances why would you expect anything other than 0?

BFG TERRANO

2,172 posts

148 months

Monday 15th September 2014
quotequote all
Brother D said:
Why is that? If you only have a balance flue boiler and no other internal gas appliances why would you expect anything other than 0?
Air contains a percentage of CO naturally, albeit very low

saaby93

32,038 posts

178 months

Monday 15th September 2014
quotequote all
SPR2 said:
It was reading 15 so they checked all round and disconnected my gas. When they left the readings had dropped to 7. I felt a bit guilty when 2 appliances arrived but they assured me I had done the correct thing.
That's worrying - did you find out what it was?

For anyone else you can get a CO spray on ebay for test purposes

Rickyy

6,618 posts

219 months

Monday 15th September 2014
quotequote all
Simpo Two said:
BFG TERRANO said:
If it's reading "00" all the time bin it and buy a new one.
Mine does.

The only exception was once when I left the grill on with the over door shut and to my slight shock it went up to 35.
Even at 35PPM, it takes 6-8 hours if exposure to experience mild symptoms and the alarm shouldn't sound for at least 120 minutes.

OP, 15PPM isn't high enough to set the alarm off. Either it was faulty or the levels were much higher than that when it went off.

Did you have any fossil fuel burning appliances running when it went off?

SPR2

Original Poster:

3,182 posts

196 months

Monday 15th September 2014
quotequote all
saaby93 said:
That's worrying - did you find out what it was?

For anyone else you can get a CO spray on ebay for test purposes
Not really but I only have a gas boiler and gas fire and the fire had not been on.The boiler is on a setting to come on twice a day for water only which had gone off at 8.30 pm.
Anyway tomorrow the boiler is being serviced and smoke tested, the fire serviced too then my gas can be reconnected hopefully.

CoolHands

18,604 posts

195 months

Monday 15th September 2014
quotequote all
I have two. One is a bit iffy in that once it goes off it goes mental and you cant shut it up, eg if you press the test button. Might be some kind of safety thing ie you can't shut it up. I have two (different makes) to be sure. But why did yours go off have you got the heating on??? Its not very cold yet I thought.

saaby93

32,038 posts

178 months

Monday 15th September 2014
quotequote all
How old is it? As another poster said it shouldnt sound the alarm until it reaches about 50
Some of them have a renew by date because something ages inside

SPR2

Original Poster:

3,182 posts

196 months

Monday 15th September 2014
quotequote all
Due for replacement in December.

dazwalsh

6,095 posts

141 months

Tuesday 16th September 2014
quotequote all
Are these units liable to false alarms by dust getting into a sensor etc?

Rickyy

6,618 posts

219 months

Tuesday 16th September 2014
quotequote all
dazwalsh said:
Are these units liable to false alarms by dust getting into a sensor etc?
Household cleaners can affect the card type indicators, unsure if they have an effect on electronic ones though.

They usually sell decent detectors in Costco for not much.