rcmashop start off by checking the "No Power" troubleshooting as outlined here:
RTE801 and RTE 802 are both SCK801 series thermistors. Download the datasheet from here. The relays are of type SDT-S-112D. Right now I'd focus on the thermistors since the melting of the relay could have originated with the thermistor. If you can get those parts I'd try and repair the board. If not then you can always check at Shopjimmy.com for a replacement board, or have them do the repair. I am sure you figured out that you are looking for a BN44-00222A power board.