How to replace electronic control module in Fisher&Paykl 2 drawer?

The bottom drawer of my F&P 2 drawer dishwasher DD603 is incessantly beeping and showing an error mode, and from past experience I believe the ECM has been cockroach affected. I would like to replace this myself. I am able to take off the front and top panels of the drawer, and get to the ECM, but cannot work out how to remove the ECM from its housing. Have removed the 2 small clear plastic pegs from the top right of the ECM, but don't want to force it out in case I break anything important. Any info would be greatly appreciated. Thanks.