Looking for advice please; I'm completely clueless about whether a solid red light on a smoke alarm indicates something immediately dangerous - I do however know that red lights aren't usually a good sign!
The alarm was chirping earlier, whilst the continuous red light was showing. I tried vacuuming through the vent in accordance with the instructions. This made no difference. I then changed the battery ( it's a mains smoke alarm with battery). This has stopped the chirping, but the continuous red light remains.
Please could anyone advise whether this is immediately dangerous? Do I need to get an out of hours electrician tonight, or can it wait until tomorrow? Is there anything else I could try to fix it myself? Thanks very much.
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