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B
During combustion, press the "maximum burner pressure set button" and check whether all the burners combusts.
Normal
* The procedure of Burner Gas
Adjustment is described in page **.
Abnormal
Check the voltage of Gas Solenoid
Valve-1 (SV1), Gas Solenoid Valve-2 (SV2),
Gas Solenoid Valve 3 (SV3) and
Gas Solenoid Valve 4 (SV4).
Normal
1
SV1 CN 10 : Between Black 9 - Blue 6
DC14 - 16V
SV2 CN 10 : Between Gray 8 - Blue 6
2
DC14 - 16V
SV3 CN 10 : Between Orange 10 - Blue 6
3
DC14 - 16V
4
SV4 CN 10 : Between Brown 7 - Blue6
1
BK
2
3
W
4
5
W
6
BL
1
2
3
4
4
7
BR
2
8
GY
9
BK
1
3
10
O
11
12
W
<CN10>
Check the Gas Proportioning Valve.
Check in the same procedure as
- 29 -
Abnormal
Circuit Board
<CN42>
MAIN
W
4
1
BK
CIRCUIT
5
2
<CN101>
6
3
BL
6
1
R
BOARD
R
7
2
BL
W
8
3
G
9
4
W
O
10
5
Y
1
BK
2
3
W
4
5
W
6
BL
1
7
BR
2
8
GY
3
9
BK
4
10
O
5
11
6
12
W
7
<CN10>
<CN63>
2.
Check for the Water Flow Sensor
or water fixtures.
Replace the Circuit Board set.
<CN186>
1
R
2
BK
3
W
4
G
5
BL
6
BL
W
31
32
1
BL
R
29
30
2
V
27
28
BK
<CN78>
O
25
26
G
W
23
24
BK
21
22
19
20
V
BL
17
18
G
O
15
16
O
W
13
14
BL
W
11
12
W
9 10
Y
W
7 8
R
1
BL
W
Y
5 6
Y
2
BL
1
2
3
W
R
3 4
BK
3
BL
BK
W
1 2
W
<CN38>
<CN89>
<CN197>
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