Another problem cropped up today after following Marathons advice. Based on the front heat exchanger bleed valve sucking coolant
rather than bleeding coolant they had me switch the hose on the galley heat exchanger thinking that someone may have got the lines crossed up when the exchanger was moved when the aftermarket slide was installed. I switched the 2 line today. Not a fun job. I had better bleed flow at this heat exchanger but the front one is still sucking coolant. Any ideas for me?

Now another issue is the Wabasto kicking out after less than a minute of running. I gave up working on it today so I don't know if air was introduced into the line when I switched the lines. Any ideas here?