Alliance Laundry Systems BU170S Service Manual download pdf (Page 75)

70422201R1

On Premise Micro Control (RM) Troubleshooting

43.Error Codes

OP - Indicates physical “open” in the thermistor circuit. Possible causes are: 1) thermistor, 2) wiring between con-

trol and thermistor, 3) control.

SH - Indicates a “short” in the thermistor circuit. Possible causes are: 1) shorted thermistor, 2) a short in the wiring

between control and thermistor, 3) control.

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect electric power to the dryer(s) before servicing.

• Close gas shut-off valve to gas dryer(s) before servicing.

• Never start the dryer(s) with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the dryer is properly grounded.

W001R1

WARNING

Display Definition Corrective Action

Indicates an open circuit in the thermistor. • Check thermistor. Replace if inoperative.

• Check wiring between control and

thermistor. Refer to wiring diagram for

proper wiring.

• Check control. Replace if inoperative.

Indicates a short circuit in the thermistor. • Check thermistor. Replace if inoperative.

• Check wiring between control and

thermistor. Refer to wiring diagram for

proper wiring.

• Check control. Replace if inoperative.

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Alliance Laundry Systems BU170S Service Manual Page 75