Alliance Laundry Systems BU170S Service Manual download pdf (Page 81)

70422201R1

LED OPL and UniLinc Troubleshooting

No Drive Motor Rotation (Drawing 1 of 2)

NOTE: The door and lint door must be closed for voltage to be present at the forward and reverse outputs.

TMB2383S

1 2 ... 76 77 78 79 80 81 82 83 84 85 86 ... 119 120

STRIAL TUMBLE DRYERS 1
Table of 3
Contents 3
70422101R1 4
Section 1 5
Safety Information 5
Safety Warnings and Decals 7
Tumblers 7
Section 2 8
Introduction 8
Customer Service 10
Serial Plate Location 10
How a Tumble Dryer Works 11
Operation 12
Temperature Sensor 13
Modes of Operation 14
Section 3 15
Troubleshooting 15
1. Motor Does Not Start 16
4. Motor Does Not Stop 19
6. No Heat Condition 21
7. Gas Burner Does Not Ignite 22
12.Clothes Do Not Dry 27
13.Tumble Dryer Overheating 28
TMB2357S 34
TMB2319S 35
TMB2368S 36
21.Cylinder Is “Stained” 39
Section 4 40
Call the fire department 41
TMB2199N 44
SUPPRESSION 45
Section 5 46
Adjustments 46
27.Airflow Switch 47
Pound Models) 47
30.Belt Drive 48
31.Cylinder Clearance 49
TMB1786S 50
32.Drive Belt Tension 51
33.Fan Belt Tension 52
Section 6 53
34.Control Has No Display 54
36.Motor Will Not Start/Run 58
37.Unit Will Not Heat – Gas 60
38.Error Codes 63
Section 7 64
39.Control Has No Display 65
40.Door Open Indicator 67
41.Motor Will Not Start/Run 70
43.Error Codes 75
Section 8 76
Is there line voltage 77
TMB2387S 79
45.No Drive Motor Rotation 80
LED OPL Error Display: E Cab 83
Is there 24 volts AC 85
48.Airflow Errors 87
LED OPL Error Display: E FnCs 89
50.Close Door Indication 91
51.Moisture Sensor Error 93
Figure 9 95
Figure 10 96
(Refer to Figure 11) 97
Figure 12 98
Machine Basket Removed 99
Figure 13 100
58.Fan Motor Contactor Error 101
TMB2383S 102
59.Rotation Sensor Error 103
Rotation Sensor Error 104
60.Shorted or Open Thermistor 105
Shorted or Open Thermistor 106
SEE VOLTAGE 107
OPTION DIAGRAM 107
PROGRAMMING DIP SWITCHES 108
(SEE INSTALLATION MANUAL 108
FOR SWITCH DETAILS.) 108
63.Electronic Control Testing 109
70422201R1 110
Diagnostic Test Descriptions 111
Production Test Cycle 116
64.Diagnostic Testing 117
Diagnostic Menu 117
Test Menu 117
Test Cycle Chart 118
Inputs Outputs Menu 119
Alarms Menus 120
Machine ID Menu 120

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Alliance Laundry Systems BU170S Service Manual Page 81

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