He was dismissed after walking on to the pitch to speak to referee Chris Foy seconds after Ramires was red-carded.
Mourinho is unhappy and frustrated by the fine, and is considering an appeal against the decision.
“I don’t know why I was sent off,” he said after the match. “I asked, but the referee refused to speak to me.”
Ramires was shown a straight red card for a two-footed tackle on Villa’s Karim El Ahmadi, an incident that sparked a touchline fracas.
The Portuguese had denied an improper conduct charge when he appeared at a personal hearing on Wednesday.
-Edward Oppong Kyekyeku, rawgist.com