Carver cascade 2 no water 

Mines the same, no hot water coming out so you have given me good insight which way to go here John, thanks a great help👍

Absolutely superb. Just bought a '94 Avondale with one of these heaters and you have saved me a bunch of effort already. I have noticed the connection of hot water pipe into unit is broken at the connector (connector left in HOT output of unit) and have to see about replacing it but have seen from your video that it's threaded. Thanks for this. Must investigate cold side (IN) now for potential blockages.

Exelllent

Thank you, very helpful 👍

hi how do you get the drum off when you have it on the bench thanks