My Jandy heater recently started leaking. The pool company that sold me the equipment said they suspect the front header has a crack in it due to freezing. They also said they won't know for sure until they take it apart. I was also given a repair quote for approx $1000.00 to make the repair. Thats $750 for the part and $250 for the labor. The part number is R0453600.

I have found the part online for about $400. My question is can I make this repair myself. I'm fairly handy but don't have any experience with pool heaters. Any guidance on how to make this repair ?

Thanks