My landlord is sticking me with bills that should not be mine?

am I wrong? When I moved into my dwelling (photographic evidence) the smoke detector in my primary dwelling had a black cast on it ; I asked nicely for them to replace it in 2023 - they never did and I just let it go because I don’t want to argue with them; then in October of 2024 during the morning at 9am the carbon monoxide detector went off because the smoke detector had died. I called my landlord and he had it replaced BUT now is trying to stick me with the 295$ bill siting that my candle smoke turned it black! I moved in and it was already black! I refuse to pay it ; and my landlord keeps invoicing me! I asked the alarm company to ask them to show my landlord the alarm tripped due to being dead and they’re covering up for my landlord as well! What should I do? It’s not right or fair

My landlord is sticking me with bills that should not be mine?
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