Circuit Board Checkpoints - Electrolux EN18WI30LS Service Manual

<EN18WI30LS, EP18WI30LS>

Circuit Board Checkpoints

Ref.
Part
No.
Overheat Prevention
1
Device (Thermal Fuse)
2 Flow Control Valve
3 Water Flow Sensor
4 Water Inlet Thermistor
5 Water Outlet Thermistor
Heat Exchanger
6
Thermistor
7 Flame Rod
8 Fan Motor
9 Fan Motor
Igniter
10
Primary Gas
11
Solenoid Valve
12 Gas Solenoid Valve - 1
13 Gas Solenoid Valve - 2
Gas Proportioning Valve
14
15 Gas Solenoid Valve - 3
High Limit Switch
16
Air Inlet Thermistor
17
- Exhaust Thermistor
Power Supply
-
(Power Circuit Board)
Power Supply
-
(Power Circuit Board)
- Remote Controller
Note 1) •Inlet / Outlet / Heat Exchanger Thermistor Temperature Characteristics
Temperature ( ° F)
Temperature ( °C )
Resistance (kΩ
)
Note 2) •Air Inlet Thermistor Temperature Characteristics
Temperature ( ° F)
Temperature ( °C )
Resistance (kΩ )
106.5
Note 3) •Exhaust Thermistor Temperature Characteristics
Temperature ( ° F)
Temperature ( °C )
Resistance (kΩ )
Voltage (V)
Circuit board Check points
CN & Pin No. Wire color
CN10 3 W - BL
23 BL - O
23 BL - G
23 BL - V
CN38
23 BL - BK
6 Y - BL
3 R - BL
CN38
5 Y - BL
W - W
CN63 4
CN63 1 W - W
CN63 3 W - W
BL -
1
Burnercase
CN78
BL -
1
Electrode
CN27 4 BR - BL
1 R - BL
CN27
3 Y - BL
1 BK - W
CN197
CN10 5 W - BL
9 BK - BL
CN10
8 GY - BL
CN10
CN101 6 BL - R
CN10 10 O - BL
CN10 12 BK - W
CN63 5 W - W
CN63 7 W - W
1 W - BK
CN92
R - BL
C102 4
CN89 1 BL - BL
32 50 68 86 104
0 10 20 30
23.7 15.5 10.3 7.0
32 50
-4 14
-20 -10 0 10
59.6 34.4 20.6 12.6
-4 14 32 50
-20 -10 0 10
487 296 162 98.3 61.4
4.6 4.3 3 9 . 3 4 .
Normal value
CN & Pin No.
2Ω or less
CN10 1
16
DC 1 - 16 V
18
DC 1 - 16 V
20
DC 1 - 16 V
CN38
24
DC 1 - 16 V
17
DC 1V or less
17
DC 14 - 16 V
DC 0.5 - 15 V
CN38
over 408 pulses/min.
17
(over 6.8Hz)
CN63 2 DC 1 - 4.5 V
CN63 2 DC 1 - 4.5 V
CN63 2 DC 1 - 4.5 V
10 kHz - 100 kHz
GND
-
DC 0.45μA or less
Flame
Rod
CN27 2 DC 7 - 45 V
2
DC 10 - 14 V
CN27
2 100 Hz - 400 Hz
3
CN102 DC 16 - 14 V
DC 14 - 16 V
CN10 6
19 - 31 Ω
DC 14 - 16 V
6
CN10
36 - 58 Ω
DC 14 - 16 V
6
CN10
36 - 58 Ω
DC 0.3 - 15 V
CN101 7
50 - 80 Ω
DC 14 - 16 V
CN10 6
36 - 58 Ω
1Ω or less
CN1 3
CN63 2 DC 0.7 - 4.4 V
CN63 2
AC 108 - 132 V
3
CN92
6
C102 DC 14 - 16 V
CN89 3 DC 14 - 16 V
122 140 158 176
40 50 60 70 80
4.9 3.5 2.5 1.9 1.4
68 86
20 30
8.0
68 86
20 30
39.5
2.8 2.3
21
Remarks
When valve is fully open
Y (+) BL (-)
32 - 212° F
0 - 100° C Note 1)
32 - 212° F
0 - 100° C
Note 1)
32 - 212° F
0 - 100° C
Note 1)
When no flame is detected
When igniter is sparking
When valve is open
Coil resistance
When valve is open
Coil resistance
When valve is open
Coil resistance
Coil resistance
When valve is open
Coil resistance
Contact resistance
Note 2)
Note 3)