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Hardy / Damper stuck open

« on: November 25, 2012, 04:05:24 PM »

Newly installed H2 been using it about a month. The damper door is sticking open and caused water to boil and run out the overflow pipe.   

Looks like the actuator sticking up.  Is it ok to put some oil or WD40 on it?  Or could there be something wrong with the actuator?

Thanks.