Noritz NRC661-DV, Service Manual, Page: 37 / 78

37
<Condition of occurrence for error code 11>
Replace the Igniter or the Ignition Plug.
Check the gas supply valve, etc .
Check the voltage to the Igniter
(on the Circuit Board) .
Check the voltage to the Igniter
(on the connector) .
YES
NO
YES
NO
Chec ck through the peephole of the burner).
A B
* Check the primary pressure (dynamic pressure)
Pressure
Maximum
pressure
Standard
pressure
Minimum
pressure
Gas group
at the time of maximum combustion.
Normal
DC 14-16V between connector Check for improper connection of
ignition plug, then replace the Igniter .
Check Thermal Fuse and High Limit Switch
conduction, and if 2 or less (Thermal Fuse)
/ 1 or less (High Limit Switch), replace the
Circuit Board.
Between : CN42 Black 6 - CN102 Blue/White 3
DC14 - 16 V
Check for the Fan Motor clogging, etc.
Check whether the Igniter is normal.
Display was not possible at the time of initial
ignition due to the causes listed below.
(Defective ignition device, leakage of ignition plug, problem in gas
supply, poor connection of ground wire, defectiv
Normal
Normal
Normal
Abnormal
Abnormal
Abnormal
Abnormal
Check whether the primary
gas pressure is normal.
Check whether the manifold gas pressure is normal.
Only connect and disconnect the connector after the fan has
stopped rotating and then disconnect the electrical power.
(The Circuit Board and Fan Motor may be damaged otherwise.)
inch H
2
O
inch H
2
O
inch H
2
O
14.0
11.0
8.0
10.5
LP NG
7.0
4.0
BL/W R/R G
3 2 1
6
5
4
3
2
1
BK
R
W
W
<CN42>
<CN102>
Primary gas pressure list
Error Codes
Description
11 11
Display
Window
Remote
Controller
Display Window
Circuit Board
Dip Switch
Data
Displ ay
1 2 3 4
R BL BL BL
<CN142>
14
13
12
11
10
9
8
7
6
5
4
3
2
1
12
11
10
9
8
7
6
5
4
3
2
1
3
2
1
W
Y
O
R
BK
V
G
O
Y
W
4
3
2
1
BL
BL
BL
R
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
4 3 2 1
BR Y BL R
R
O
Y
W
BL
R
W
O
GY
BK
W
BL
W
BL
2
1
BL/W
BK BK 4 2
W W
Fuse
3 1
R/R G
3 2 1
BL
6
5
4
3
2
1
BK
R
W
W
3
2
1 R
BL
G
BL
W
R
Y
BK
BK
W
W
BK
W
<CN63>
<CN135>
<CN78>
<CN59>
<CN142>
<CN104>
<CN27>
<CN92>
<CN101>
<CN10>
<CN75>
<CN102>
<CN89A>
<CN89B>
<CN42>
Main
Circuit
Board
Po wer
Circuit
Board
Circuit Board
1 2 3
2. Error Code Displayed