About two years ago, we had a Scantronic 9751 alarm fitted to our house. There are 8 zones - zone 8 is a CO fire detector.
When the fire detector is activated, the manual says that the keypad and internal sounder sound a "warbling" tone.
However, only the keypad makes a noise, and the internal sounder doesn't go off when the fire detector is activated.
This is a problem because the keypad only sounds a very quiet alarm, which wouldn't wake anybody up, and more likely - because the alarm is linked to a monitoring station, if the fire alarm goes off, we might not hear it in time to cancel the false alarm and stop the fire brigade coming (as has already happened).
I think it is because there is no "speaker" - the internal sounder is just a siren which probably is only able to make one noise. But surely the alarm doesn't comply to the relevant safety standards if the alarm doesn't go off properly when the fire detector is activated.
Does anybody know why this is - or how we can get around it?