Table of Contents
Advertisement
A
B
Check whether the primary
gas pressure is normal.
Normal
Primary gas pressure list
Check whether the burner gas pressure is normal.
Abnormal
Check the voltage to the Primary Gas Solenoid Valve (SV0)
and the Gas Solenoid Valve-1 (SV1).
Normal
1
SV0 CN10 : Between White 5 - Blue 6
2
SV1 CN10 : Between Black 9 - Blue 6
Check the resistance to the Primary Gas Solenoid Valve (SV0)
and the Gas Solenoid Valve-1 (SV1).
Normal
1
SV0 CN10 : Between White 5 - Blue 6
2
SV1 CN10 : Between Black 9 - Blue 6
Check the voltage between the terminals of the Gas Proportioning Valve (on the connector).
Normal
DC 0.3 - 15V
Check the voltage between the Gas Proportioning Valve
(on the Circuit Board).
Normal
CN101 : Between Red 7 - Blue 6
A
B
Abnormal
* Check the primary pressure (dynamic pressure)
at the time of maximum combustion.
Gas group
ULPG
Pressure
Maximum
kPa
3.5
pressure
Minimum
kPa
2.75
pressure
Normal
DC1 - 16V
DC1 - 16V
1
2
3
4
5
1
6
1 2
7
8
9
2
10
11
12
<CN10>
19 - 31
36 - 58
Abnormal
DC 0.3 - 15V
BL
6
1
R
7
2
W
8
3
9
4
O
10
5
<CN101>
NG
3.0
1.13
Abnormal
Circuit Board
<CN42>
W
4
1
BK
5
2
<CN101>
6
3
BK
BL
6
1
R
R
7
2
BL
W
8
3
G
W
9
4
W
O
10
5
Y
1
BK
W
2
3
W
BL
4
5
W
BR
6
BL
7
GY
BR
8
GY
BK
9
BK
10
O
O
11
12
W
<CN10>
W
Abnormal
When measuring the resistance, disconnect the connector
and check from the disconnected connector side.
Abnormal
Circuit Board
<CN42>
R
W
4
1
BK
BL
5
2
<CN101>
6
3
G
BL
6
1
R
R
7
2
BL
W
W
8
3
G
9
4
W
Y
O
10
5
Y
1
BK
2
3
W
4
5
W
6
BL
7
BR
8
GY
9
BK
10
O
11
12
W
<CN10>
- 31 -
Check the gas supply valve, etc.
Check for the Fan Motor clogging, etc.
Replace the Circuit Board set.
<CN186>
1
R
2
MAIN
BK
3
W
4
G
CIRCUIT
5
BL
BOARD
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
1
13
14
W
BL
2
11
12
W
3
9 10
Y
W
4
7 8
R
W
1
BL
5
W
Y
5 6
Y
2
BL
6
W
R
3 4
BK
3
BL
BK
7
W
1 2
W
<CN63>
<CN38>
<CN89>
<CN197>
Check for improper connection of wiring,
then replace the Gas Valve or Manifold.
Replace the Circuit Board set.
<CN186>
1
R
2
BK
MAIN
3
W
CIRCUIT
4
G
5
BL
BOARD
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
O
15
16
1
W
13
14
BL
2
W
11
12
3
W
9 10
Y
4
W
7 8
R
1
BL
5
W
Y
5 6
Y
2
BL
6
W
R
3 4
BK
3
BL
BK
7
W
1 2
W
<CN63>
<CN38>
<CN89>
<CN197>
Check for improper connection of wiring.
1
2
3
1
2
3
Advertisement
Chapters
Table of Contents
