Navien Dhw Wait Mode - Jirasin Hotel & Apartmentด ว ฟ เว อ ร น 1jo Ann 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.
Jirasin Hotel & Apartmentด ว ฟ เว อ ร น 1jo Ann