I have 3 rescue dogs & 1 absolutely will not use the doggie door when it's too hot (Phoenix in the summer...) or wet from rain. The other two are (were) perfectly doggie door trained but Gina has started going inside throughout the house. I thought I had the problem solved...I put a potty pad in the spot where she most likes to go & she's been using it. However, now the other 2 are starting to urinate in that room as well .... not on the potty pad. I'll have to take her back if I can't resolve the problem. I can't have 3 dogs urinating on the carpet indoors. I'll appreciate any ideas/help you can provide. Thanks.