Troubleshooting - Oil Matic Kanto Seiki

Troubleshooting

Symptom: no cold

  • no hot air

    cause
    There is a possibility of gas leakage, so please fill in the after service request sheet and send it to us.

  • Condenser is dirty

    cause
    Clean the condenser, as heat exchange may be poor.

  • Dirty cooler (coolant only)

    cause
    Clean the cooler as heat exchange may be poor.

  • Low circulating flow

    cause
    The piping resistance on the suction side may be large, so improve it.
    If there is a filter in the flow path, it may be clogged, so please clean it.

Symptom: Alarm ML, KTV, KTCG, MLCC Series

  • Alarm number　AL01

    cause
    Pump, stirring motor overcurrent
    negative phase relay operation
    Cancellation method
    Manual recovery of OL1 in the control box
    Replacement of three-phase power supply
    Confirmation point
    Check for pump, stirring motor failure, high viscosity liquid, thin liquid piping, pump lock, etc.

  • Alarm number　AL02

    cause
    Compressor overcurrent
    Cancellation method
    Manual recovery of OL2 in the control box
    Confirmation point
    Check for fan motor or compressor failure, gas leak, refrigerant shortage, overload, rise in suction temperature, etc.

  • Alarm number　AL03

    cause
    Refrigeration circuit pressure abnormality
    Compressor temperature abnormality
    Cancellation method
    Automatically resets when operation is restarted
    (resets when temperature and pressure drop)
    Confirmation point
    Check for dirt on the condenser or cooler, overload, rise in suction temperature, failure of the fan motor, etc.

  • Alarm number　AL04

    cause
    Abnormal heater surface and case temperature
    Cancellation method
    Automatic recovery when operation is restarted
    (recovery when temperature drops)
    Confirmation point
    Check for insufficient circulation flow, abnormal liquid level, contamination or failure of protective equipment, etc.

Symptom: Alarm C, V, W, CL Series

  • Alarm number　AL1

    cause
    Excessive current in the pump or stirring motor
    Cancellation method
    Manual recovery of OL1 in the control box
    Confirmation point
    Check for pump, stirring motor failure, high viscosity liquid, thin liquid piping, pump lock, etc.

  • Alarm number　AL2

    cause
    Refrigeration circuit pressure abnormality
    Compressor temperature abnormality
    Cancellation method
    Automatically resets when operation is restarted
    (resets when temperature and pressure drop)
    Confirmation point
    Check for dirt on the condenser or cooler, overload, rise in suction temperature, failure of the fan motor, etc.

  • Alarm number　AL3

    cause
    Inverter board failure
    Cancellation method
    Automatic recovery when operation is restarted
    Confirmation point
    Part replacement for INV board

  • Alarm number　AL31

    cause
    HIC overcurrent
    Cancellation method
    Automatic recovery when operation is restarted
    Confirmation point
    Parts replacement for inverter board and HIC board

  • Alarm number　AL32

    cause
    Compressor overcurrent
    Cancellation method
    Automatic recovery when operation is restarted
    Confirmation point
    Parts replacement for inverter board and HIC board

  • Alarm number　AL33

    cause
    HIC signal output error
    Cancellation method
    Automatic recovery when operation is restarted
    Confirmation point
    Parts replacement for inverter board and HIC board

  • Alarm number　AL34

    cause
    HIC overheated
    Cancellation method
    Automatic recovery when operation is restarted
    Confirmation point
    Parts replacement for inverter board and HIC board

  • Alarm number　AL4

    cause
    Abnormal heater surface and case temperature
    Cancellation method
    Automatic recovery when operation is restarted
    (recovery when temperature drops)
    Confirmation point
    Check for insufficient circulation flow, abnormal liquid level, contamination or failure of protective equipment, etc.

  • Alarm number　AL6

    cause
    Abnormal sensor
    Cancellation method
    Automatic recovery when operation is restarted
    Confirmation point
    sensor replacement

  • Alarm number　AL61

    cause
    Master sensor disconnection
    Cancellation method
    Automatic recovery when operation is restarted
    Confirmation point
    Corresponding sensor replacement

  • Alarm number　AL62

    cause
    Slave sensor disconnection
    Cancellation method
    Automatic recovery when operation is restarted
    Confirmation point
    Corresponding sensor replacement

  • Alarm number　AL63

    cause
    Reference sensor disconnection
    Cancellation method
    Automatic recovery when operation is restarted
    Confirmation point
    Corresponding sensor replacement

  • Alarm number　AL64

    cause
    Room temperature sensor disconnection
    Cancellation method
    Automatic recovery when operation is restarted
    Confirmation point
    Corresponding sensor replacement

  • Alarm number　AL7

    cause
    CPU, communication error
    Cancellation method
    Automatic recovery when operation is restarted
    Confirmation point
    control board replacement

  • Alarm number　AL70

    cause
    Incorrect dip switch settings
    Cancellation method
    Automatic recovery when operation is restarted
    Confirmation point
    DIP switch check, communication wiring check, control board replacement

  • Alarm number　AL71

    cause
    data error
    Cancellation method
    Automatic recovery when operation is restarted
    Confirmation point
    DIP switch check, communication wiring check, control board replacement

  • Alarm number　AL73

    cause
    Disconnection of communication wiring
    Cancellation method
    Automatic recovery when operation is restarted
    Confirmation point
    DIP switch check, communication wiring check, control board replacement
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