We own a Lunar Clubman 1992, we have a problem with our Cascade Water Heater 2, we appear to have a leak from the outside water vent, not the draining plug, could it be the rubber seal perished? No sign of water inside the van from heater or around heater, pump works ok , but obviously keeps drawing water from Hog to fill tank. Any help or advise would be appreciated. Liz
Leaking Boiler
- Thread starter LizCornwall
- Start date
Hello Liz,
There are possible openings on the outside of a Carver Cascade 2. The drainplug, at the bottom and visible through the cowl. If this is leaking then it is either damaged drain plug or the 'O' ring seal on the plug.
Directly above the drain plug at the top of the heater, is the pressure relief valve (in later versions this also acted as a fast drain valve. If this is leaking, it could be that the 'O' ring seal is damaged, or that the water pressure is actually too high, causing it to do its job - dumping excess pressure. Or if it is the later model with the additional fast drain cam, it might not have been properly reset to the closed position.
The third option is the fusible plug which is buried in the heart of the fin pack of the heat exchanger. This is designed to melt if the heater over heats, and it then dumps water into the burner to shut it off.
If the fusible plug has blown, then means that something else has gone wrong, so the heater must be checked for correct operation.
Incidentally at a Carver training session I attended, the manufacture was adamant the appliance is called a heater not a boiler if it boils then something has gone wrong.
There are possible openings on the outside of a Carver Cascade 2. The drainplug, at the bottom and visible through the cowl. If this is leaking then it is either damaged drain plug or the 'O' ring seal on the plug.
Directly above the drain plug at the top of the heater, is the pressure relief valve (in later versions this also acted as a fast drain valve. If this is leaking, it could be that the 'O' ring seal is damaged, or that the water pressure is actually too high, causing it to do its job - dumping excess pressure. Or if it is the later model with the additional fast drain cam, it might not have been properly reset to the closed position.
The third option is the fusible plug which is buried in the heart of the fin pack of the heat exchanger. This is designed to melt if the heater over heats, and it then dumps water into the burner to shut it off.
If the fusible plug has blown, then means that something else has gone wrong, so the heater must be checked for correct operation.
Incidentally at a Carver training session I attended, the manufacture was adamant the appliance is called a heater not a boiler if it boils then something has gone wrong.
Thanks John for info. I am returning to Somerset where van is on Sunday so I will remove outside panel and check 'O' rings, thanks again, quite right it is a Heater not boiler. Liz
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