I had a nightmare a couple of months ago, twas about 2am and I'm out for the count when the flaming thing went of, well when it takes you all your time to walk 5 paces it was very disconcerting, I got up and switch it of, couldn't smell smoke had a look round nothing, jaysay was not very happy, he was even less happy when the thing went of again 10 minutes later. The emergency call service was useless hate to think what would happen if I had a real problem, eventually my son in law came over removed the thing and took it away as it was a sealed unit and would have continued going off.
The day after I rang HH, they weren't interested, said they would prefer it to the fire brigade, I told them that I was disabled and it was urgent that they refused it right away, eventually decided to make sure and rang the FB and they attended within 4 hours replaced the alarm and did a full safety check on my gaff, because of the oxygen and gave me the okay. The only thing is about a week later I received another call from the FB saying they had had a referral regarding a smoke alarm, now I know just what HH consider to be urgent
