Welcome! Here are the website rules, as well as some tips for using this forum.
If you've found help here, check back in to let us know how everything worked out.
It's a great way to thank those who helped you.
I have a recently installed Rinnai PUC 98. After a few hours of use I the water goes cold and I get a error 25. This error is a condensate trap full, I believe. I have a condensation tube going to a pump that is also used for my furnace/ac. Once the error comes on, I go down stairs with a bucket and disconnect the tube and water comes out. Once this is done the water heater works properly. It seems like it doesn't want to drain through the tube because of a pressure issue or air in the line.