Alliance Laundry Systems LTS99A*N1180 Service Manual Page 120
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- Table of contents
- TROUBLESHOOTING
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118 801803
Section 7 Dryer Test Procedures
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect all electric power to the machine and accessories before servicing.
• Close gas shut-off valve to gas dryer before servicing.
• Never start machine with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the machine is properly grounded.
• Washer motor not grounded! Disconnect electric power before servicing motor.
W502
WARNING
90. BURNER SYSTEM OPERATION
(Gas Models – Refer to Figure 68.)
a. Components
This burner has four basic components: a
silicon carbide (glow bar) igniter, burner tube,
sensor, and a two-stage gas valve consisting of
a split-coil valve and a secondary coil valve.
The split-coil valve is opened when the dryer
thermostat calls for heat, while the secondary
valve does not open until the igniter has attained
ignition temperature.
b. Pre-Ignition Circuits
When the dryer thermostat calls for heat,
circuits are completed through the holding coil,
sensor, booster coil and igniter. Both coils must
be energized to open the split-coil valve. Once
opened, the holding coil can hold the valve
open without assistance from the booster coil.
The sensor triggers the current to travel around
the secondary coil and through the igniter,
causing the igniter to get hot.
c. Burner Circuit
In approximately 30 seconds, the igniter attains
ignition temperature and ignition is made. The
heat from the burner flame causes the sensor
contacts (located on burner housing beside the
igniter) to open. A circuit is then completed
through the secondary valve coil, opening the
valve and allowing gas to flow.
d. Momentary Power Interruption
Upon resumption of power, sensor contacts will
still be open, permitting secondary valve to
open. However, with the secondary coil in the
circuit, the booster coil cannot draw enough
current to open the split-coil valve. When
sensor contacts do reclose, the secondary valve
will close, and the burner system will be in the
normal pre-ignition circuit.
e. Flame Failure
In case of flame failure, the sensor contacts will
re-close in about 45 seconds. This will close the
secondary valve and the burner system will be
in the normal pre-ignition circuit.
f. Ignition Failure
If flame is not established as sensor contacts
open, secondary valve will remain open until
sensor contacts re-close. Sensor will continue to
recycle the igniter and secondary valve (about
once per minute) until ignition is made or dryer
is turned off.
Figure 68
Secondary
Coil
Holding Coil
and
Booster Coil
(Split Coil Valve)
4
1
5
2 3
D267SE3B
Sensor
SECONDARY
COIL
HOLDING
COIL
BOOSTER
COIL
Igniter
120 Volt, 60 Hertz
Electrical
Supply Line
D268SE3A
- Homestyle 1
- Stacked Washer/ 1
- Table of Contents 3
- Section 6 – Adjustments 4
- Model Identification 5
- 4 801803 6
- Section 1 7
- Safety Information 7
- 6 801803 8
- Section 2 9
- Introduction 9
- 8 801803 10
- General (Dryer) 11
- General (Washer) 11
- Technical (Washer) 11
- 10 801803 12
- Section 3 13
- Troubleshooting 13
- 12 801803 14
- 14 801803 16
- POSSIBLE CAUSE TO CORRECT 16
- 16 801803 18
- 18 801803 20
- 20 801803 22
- 22 801803 24
- (NO RESPONSE TO START SWITCH) 26
- 26 801803 28
- 801803 27 29
- (DOOR LED FLASHING) 30
- 23. WASHER MOTOR WILL NOT RUN 32
- WASHER MOTOR WILL NOT RUN 33
- (WASH/DOOR LEDS FLASHING) 34
- Washer Overflows 36
- WASHER OVERFLOWS 37
- 26. PUMP DOES NOT OPERATE 38
- PUMP DOES NOT OPERATE 39
- 38 801803 40
- SERIAL COMMUNICATION ERROR 41
- 40 801803 42
- Section 4 43
- Grounding 43
- 42 801803 44
- Figure 2 44
- Figure 3 45
- 44 801803 46
- Figure 4 47
- 46 801803 48
- Figure 5 49
- 48 801803 50
- Section 5 51
- Service Procedures 51
- 50 801803 52
- Figure 7 53
- 52 801803 54
- Figure 8 55
- 54 801803 56
- Figure 9 56
- Figure 10 57
- 56 801803 58
- Figure 11 58
- Figure 12 59
- 58 801803 60
- Figure 13 61
- Figure 14 61
- 60 801803 62
- Figure 15 62
- Figure 16 62
- Figure 17 63
- 62 801803 64
- Figure 18 65
- 64 801803 66
- Section 5 Service Procedures 67
- 66 801803 68
- Figure 19 68
- 68 801803 70
- Figure 20 70
- 70 801803 72
- Figure 21 73
- Figure 22 73
- 72 801803 74
- Figure 23 74
- Figure 24 75
- 74 801803 76
- Figure 25 76
- Figure 26 76
- 76 801803 78
- Figure 27 79
- SWD1674S 80
- Figure 31 81
- 80 801803 82
- Figure 32 82
- Figure 33 83
- 82 801803 84
- Figure 34 84
- Figure 35 85
- 84 801803 86
- Figure 36 86
- Figure 37 87
- 86 801803 88
- Figure 38 88
- Figure 39 89
- 88 801803 90
- Figure 40 90
- Figure 41 90
- Figure 42 91
- 90 801803 92
- Figure 43 92
- Figure 44 92
- Figure 45 93
- Figure 46 93
- 92 801803 94
- Figure 47 94
- Figure 48 95
- Figure 49 95
- 94 801803 96
- Figure 50 96
- Figure 51 97
- 96 801803 98
- Figure 52 98
- 98 801803 100
- Figure 53 100
- Figure 54 101
- 100 801803 102
- Figure 55 103
- Figure 56 104
- 102 801803 104
- Figure 57 105
- 104 801803 106
- Section 6 107
- Adjustments 107
- 106 801803 108
- Figure 59 108
- Figure 60 109
- SHOWN CLOSED 110
- Figure 62 111
- 110 801803 112
- Figure 63 112
- Section 7 113
- Dryer Test Procedures 113
- Figure 65 115
- 801803 115 117
- 116 801803 118
- Figure 66 118
- Figure 67 119
- 118 801803 120
- Figure 68 120
- Secondary 121
- And Booster 121
- SILICON CARBIDE IGNITER AND 122
- BRACKET ASSEMBLY 122
- 801803 121 123
- 122 801803 124
- Section 8 125
- 124 801803 126
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