CM3939
New Member
Hello,
My Navien combi boiler was not giving hot water and the PSI on the system was showing zero. I drained the tank and replaced the water pressure sensor which fixed the issue. When I turned the water back on rebooted the system it quickly became too hot (above 200 degrees) and shut down with the 001 code. I'm able to hear a whooshing noise for a few minutes after it shuts off which sounds like it may be coming from the pump.
Any ideas here? The water inlet filter is clean and I just descaled the system a couple months ago. Seems like too much of a coincidence that this happens immediately after replacing the WPS so I hesitate to think it could be the pump or board.
Any help would be appreciated.
Thanks!
My Navien combi boiler was not giving hot water and the PSI on the system was showing zero. I drained the tank and replaced the water pressure sensor which fixed the issue. When I turned the water back on rebooted the system it quickly became too hot (above 200 degrees) and shut down with the 001 code. I'm able to hear a whooshing noise for a few minutes after it shuts off which sounds like it may be coming from the pump.
Any ideas here? The water inlet filter is clean and I just descaled the system a couple months ago. Seems like too much of a coincidence that this happens immediately after replacing the WPS so I hesitate to think it could be the pump or board.
Any help would be appreciated.
Thanks!