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if you replaced the main control board and still have nothing working at all the transformer has blown which would make sense since you have a power surge. you would need a volt meter to test this however, also the other possibility on this would be the thermal fuse. you need a multi meter to do some testing, do you have one ?
yes i do have a multi meter
I have 115 volts going in and no dc voltage coming out and it looks like it should have 16 volts dc out so I assume the transformer is bad.
yes it is. you will need to replace the transformer. its $22.50 at the following link, http://www.repairclinic.com/PartDetail/Transformer/DA2600022B/1603259?modelNumber=RB215LASH good job ! I hope I've helped, thanks. have a great day and thanks. Bryan