Thermostat?
I would take the thermostat out and check it. It sounds like it's stuck open for some reason. Maybe test it in a pot of hot water on the stove, just to eliminate it as a cause of the problem
Rick
P.S I found some text regarding increased pump pressure that you might find interesting from Hessmarine FAQ.
Last edited by Dromo; 02-16-2009 at 10:18 AM.
Reason: add text
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