Version Display; Error Codes - Navien NCB-150E Service Manual

4.5 Version Display

Item
(a) Main Controller F/W Version
(b) Panel F/W Version

4.6 Error Codes

Item
(a) Panel Communication Error
(b) Key Error
Description
Displays for 3 seconds
Ex > Ver 1.2
Error Code
Automatically releases the error code when the main controller doesn't
answer for 60 seconds but the system operates normal communications
once.
E782
The error code will be displayed first on the Panel Controller regardless
(Level 1)
of error level when a Panel Communications Error occurs (as it is not
possible to know the Controller error status if communication with the
Controller is not available)
A Key Error occurs when Touch IC IIC Communication is not available
E593
for more than 1 minute and will be automatically released when normal
(Level 1)
operating conditions are met.
Display
Conditions
System Details 59