Can a navien 240A be set to internal Recirc mode?
With the 2-way valve set to internal recirc mode, all it is doing is recircing within the 240A body and not going out to the Navicirc valves. The 2-way valve needs to be switched to external mode in order to actually recirc to the downstream navicirc valves rather than internal to just the heat exchanger.
Is the navien nr-240a water heater out of warranty?
My replacement unit is now out of the 1 yr warranty as well. When we shower, it often starts out moderately warm (not hot) for about 2-3 minutes then goes cold. I have to turn off the hot water service and wait 10 seconds or so then turn back on, after 20 seconds it gets hot again.
Do you need to replace the navien Control Board?
There are definitely other issues that a failing or failed board can cause but the symptoms can be difficult to narrow down. You may find that power cycling the unit (un-plug and plug back in) can temporarily solve the issue. Ultimately you will likely need to replace the Navien control board.
Are there any issues with the navien NP 240?
I have had multiple issues with Navien NP 240 unit installed in 2019. This unit is problematic. Navien had sent one of their own tech reps to work with my plumber…problem was fixed, now more problems arising.
Are there any heating issues with the navien nr-240a?
After the initial install of our CR-240A (taps often would not return heated water, we had some leaking from bad fittings, etc.), we had a number of issues that required a complete warranted replacement. We now have a NR-240A unit and we were excited to have problems behind us.
Are there any problems with the navien tankless water heater?
Heat Exchanger Unlike other problems of Navien tankless water heaters, the heat exchanger issue is a rare case. This device can either get decay or dry within a limited time. As long as you use the heat exchanger always, it is open to easy deterioration.
What is error code 03 on navien water heater?
Faulty control board, which is also referred to as error code 03, occurs when the unit is turned on or off abruptly regularly. Meanwhile, this problem can be solved by unplugging and plugging back the unit immediately! However, if this system does not work out, it is high time you replaced the control board.
Is the navien heat box connected to the tap?
While the tap is off, the Heat Box calls for water again and the Navien kicks back in. -Turn Domestic water on again (after 15 second in line above) and the Navien does supply Hot water to the domestic tap just fine.
