BAFFLING smoke alarm problem

[Wilko]

I had a similar problem a while back. The light was glowing whilst off. The alarms were wired into the live feed to the switch, so the switch return to the light was connected to the smokes neutral. when you removed one of the alarms the glow stopped.

Sorry, I'm lost ... little dwg?

 

[gutterball]

JB > sw > light ok so far?
feed for alarms joined to cable between jb and sw. so n of alarms between sw and light.

 

[gutterball]

sorry brain not working too much jack d last night. rose 3 plate, not JB.

 

[davesparks]

I had a similar problem a while back. The light was glowing whilst off. The alarms were wired into the live feed to the switch, so the switch return to the light was connected to the smokes neutral. when you removed one of the alarms the glow stopped.

Which is exactly the situation I've described above.

 

[Midwest]

And me sort of

 

[Brian Angell]

Check your 3 core interlink cable. You may have got the neutral or the switched (alarm) live in the wrong terminal at one of the heads.

 

[davesparks]

Check your 3 core interlink cable. You may have got the neutral or the switched (alarm) live in the wrong terminal at one of the heads.

How will that cause the light to partially illuminate when the switch is off?

 

[Dave OCD]

As previously stated I'm also certain that the cable used to feed the new alarms has been connected to a live and switched live return rather than L & N. It's the most logical and obvious explanation.

 

[Midwest]

As previously stated I'm also certain that the cable used to feed the new alarms has been connected to a live and switched live return rather than L & N. It's the most logical and obvious explanation.

I've been saying (and shed loads of others) having been saying something similar all along. Up to OP to report back and let us know the particular fault.

 

[westward10]

I expect he has the place in bits now.