Recent content by braindrain22

Following up again on this. Turns out the back-flow valve wasn't it. The problem was the three way valve. I held off calling the plumbers back to get more data. I was also fortunate to get a more experienced tech the second time around. After a few calls to Navien I finally get a pretty...

Follow up in case anyone else has this issue: No error codes, no functional issues aside from the burn times being short. See below for cause. Oddly enough there is a back flow prevention valve following the zone circulating pump (single zone). The valve is getting stuck intermittently. The...

Hi everyone, Aside from the internal circulating pump failing in September, the unit has been running without issue since its install 5 years ago. Everything was in order during my annual service 3 weeks ago by a Navien certified plumber. Starting 2 days ago, I noticed the thermostat calling...