Rinnai Tankless Error LC Code

Posted on Jan 18, 2011 | 14 comments

Your Rinnai will build up a scale on the inside of the heat exchanger significantly reducing efficiency.  If it becomes too much the Rinnai tankless will produce an error code LC (or 00 when previewing error history). How to Fix Error LC on your Rinnai As a temporary fix if you simply unplug the unit and wait 60 seconds then plug it back in the tankless should work for a little while.  The Rinnai may work for up to a week before the...