Hill was sent off in the 19th minute and Neil Warnock told the Ealing Gazette: "I still don't understand the red card.
"I've watched it again six or seven times - and I've spoken to the referee. Clint didn't put his hands up or anything. We shall be appealing - even though you risk being getting even more games if the appeal fails.
"The ref said to me he could have handled the situation better - and we all make mistakes. I just hope he puts his hands up in his report.
"The FA will make a decision on Thursday, and we're appealing not just because we can get an extra game out of Clint."