primus 2470?

Hi I have just bought a 1998 elddis earl caravan to trial to see if we like, we are unable to get water heating etc and checked all the obvious (being a beginner) and nothing seemed to be firing up although I hava a new leisure battery installed,gassupply is fine and can be heard running I decided to check on any ignition on the black box control panel on the primus pump and on removing this it looks like the soldered points on the circuit board are worn/damaged, how easy is it to get a replacement/repair please? and we have not even been out in it yet!!! thank you in desperation