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2. Error Code Displayed
Error Code 10 Combustion abnormality
(Output drop and warning indication only)
* Warning indication : Regardless of whether the ON/OFF button is
on or off, warning indicator "10" flashes and
combustion continues with limited output.
Reset the power supply to stop the flashing.
Inspect the burner specifications.
Normal
Abnormal
Inspect the air supply and exhaust passages.
Normal
Abnormal
Error Code 11 Ignition failure
(Initial flame fault detection)
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.)
Check that the flame ignites (check through the peephole of the burner).
YES
Check whether the Igniter is normal.
YES
A
B
• Check gas type.
• Check the burner injector size and main damper size.
• Check the primary and manifold gas pressure.
NO
NO
Check the voltage to the Igniter
(on the connector).
Abnormal
Check the voltage to the Igniter
(on the Circuit Board).
Normal
Between : CN197 Black1 - CN102 Blue3
DC14 - 16V
BK
<CN197>
<The occurrence condition for error code 10>
After using for 5 years or the equivalent, the error message is
displayed if the initial fan speed correction is 103% ((L)WHiC56,
(L)WHiCX56), 104% ((L)WHi49, (L)WHiX49) or more.
(Output drop, continue combustion.)
• Check for the fan motor clogging.
• Check for the air supply and exhaust passages.
<Condition of occurrence for error code 11>
Displayed if flame detection 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, defective flame rod, etc.)
Normal
DC 14-16V between connector
Abnormal
Circuit Board
<CN42>
W
4
1
BK
5
2
<CN101>
6
3
BL
6
1
R
R
7
2
BL
W
8
3
G
9
4
W
O
10
5
Y
1
2
3
4
5
6
7
8
9
10
11
12
<CN10>
1
2
3
4
3
2
1
R
BL
G
<CN102>
- 30 -
Adjust the burner specifications.
Clean the clogged section.
Explanation of the appliance service life.
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.
<CN186>
MAIN
CIRCUIT
BOARD
W
31
32
R
29
30
V
27
28
BK
O
25
26
G
BK
W
23
24
BK
21
22
W
19
20
V
BL
17
18
G
W
O
15
16
O
BL
1
W
13
14
BL
BR
2
W
11
12
GY
3
W
9 10
Y
7 8
BK
4
W
R
5 6
O
5
W
Y
Y
6
3 4
W
R
BK
7
1 2
W
W
W
<CN63>
<CN38>
4
3
POWER
R
BL
<CN102>
CIRCUIT
BOARD
7
6
5
4
3
2
1
<CN103>
Replace the Igniter or the Ignition Plug.
1
R
2
BK
3
W
4
G
5
BL
6
BL
1
BL
2
<CN78>
1
BL
2
BL
1
2
3
3
BL
BK
<CN89>
<CN197>
2
1
7
G
6
W
5
Y
4
3
2
W
1
O
<CN104>
4
BR
3
Y
2
BL
1
R
<CN27>
3
BK
2
1
W
<CN92>
<FUSE 10A>
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