Navien Dhw Wait Mode - Power the unit back up and wait for 30 minute to see if the unit starts heating again. If you notice your navien’s control board is malfunctioning (for example, it’s not displaying at all, the device. Since it was working fine last night, this could be a. On most model it suggests its waiting for the navient water heater to start heating the water as it takes time for it to get to temp to meet the demand for hot water, where it never stops showing. Okay the operation status says three different things. Exactly which model do you have? Is it natural gas or. Unplug the unit and wait a minute before plugging it back in. It only says 140 on the front no other numbers like e002. The wrench is an indication that there’s an error. Some of the combi boilers run short cycles to keep the dhw heat exchanger hot all the time. This reduces the hot water wait time.
Power the unit back up and wait for 30 minute to see if the unit starts heating again. If you notice your navien’s control board is malfunctioning (for example, it’s not displaying at all, the device. Since it was working fine last night, this could be a. On most model it suggests its waiting for the navient water heater to start heating the water as it takes time for it to get to temp to meet the demand for hot water, where it never stops showing. Okay the operation status says three different things. Exactly which model do you have? Is it natural gas or.