Hi @Mike115,
That's unfortunate that you had to cancel due to a maintenance issue. As @Helen3 said, whether or not you can get the cancellation penalties waived is up to Airbnb - you will need to contact them and explain the situation to see what they decide. This Community Help Guide explains the best ways to contact them.
Just to let you know, I have moved your post and replies to a new thread here in the Community Help board as it was getting lost in another discussion. It will be easier for others to find it here. I have also given it a title, please let me know if you would like to change it!
Kirstie