Saturn Navien LFA-13K - Error Code

When an error occurs, the LCD shows one of the following numeric error codes
with letter 'E'.
Error Code
01
02
03
04
05
06
09
10
11
12
Overheat
Low water level
Ignition failure or
overheated unit
Pseudo ame
Heating sensor wire
disconnected
Short circuit of
heating sensor
Air pressure failure
Fan RPM failure
Water level detection
failure
Flame failure during
combustion
13
14
15
16
17
27
28
29
51
52
Heating water ow
S/W failure
Gas alarm (optional)
MICOM failure
Bimetal overheat
(Mechanical)
DIP S/W setting error
Air pressure sensor error
Thee-way valve error
Pipe leaking
Black out
compensation error
Operation button
error
Error Code Error Code
Cause Cause
36