I took the heat exchanger into a radiator shop for them to take a look at..Keith I broke a copper pre-heat exchanger once too. At least you didn't break the stainless one. Just curious how difficult it was for you to reassemble the machine?
If you just take one thing at a time both taking it apart and putting it back together it's not so hard. Just take your time and remember how everything is set up..
The worst thing for me is the wiring.. This time I checked all the wires and found 1 crispy one and a bad connector. .