Navien NHB-055, Service Manual

Page: 32 / 147

32 NHB Service Manual Version 1.0
Segment Status Display Function Remarks
WAIT
Shown while waiting for a response from the Main Controller when the Boiler
performs an error test or error history load
RST Shown on Error Reset
CLR Shown on deleting the error history and parameters.
INIT Shown on Factory Reset
4.4.2 Buttons
Button
MODE
Description or Name Diagnostic Reset Power Mode Plus Minus
Short Key Function Remarks
[Diagnostic] short key Display of information for service
[Mode] short key
Sets heating temperature
Sets hot water temperature
Displays / confirms information for customers
Converts () in order of
Setting heating temperature
=> Setting hot water temperature
=> Displaying customer information
(in Normal Mode only)
[Reset] short key Error code release / cancellation
[Plus] short key
Item movement / increase and displays Level 1 Error
code (for Level 1 Error status)
[Minus] short key
Item movement / reduction and displays Level 1 Error
code (for Level 1 Error status)