I have had my outdoor cat for two years. Recently I noticed his house was dirty so I rinsed it out with water, shook out his bed and the blanket we keep under his bed. Since then he will not sleep in his house. He will sleep on the cement next to his house but won't go in unless it's pouring rain. We have even tried putting his food bowl inside his house - he went in to eat then slept outside again. What can I do?

You changed the smell. It no longer smells like his. Can you put a blanket or something next to it, for him to sleep on, then move it inside the house?