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
When you can’t find the information you’re looking for
Maintenance diagnosis sheet
In principle, our products are provided with individual specifications for each machine tool/industrial machine manufacturer, and under the guarantee of the machine manufacturer, we have achieved suppression of thermal displacement and maintenance of accuracy for the entire machine/equipment.
Therefore, if you need maintenance due to a problem, please be sure to contact the manufacturer of the machine tool/industrial machine that our product such as Oilmatic is attached to, or the place of purchase. (The same applies to failures and defects of Oilmatic installed outside Japan.)
At that time, after checking not only the model number ② but also the ① “MFG No.” attached to the side of our products such as OILMATIC, Please fill in the “check sheet” on this site with the model name, SpcNo (specified in the specifications) of the product such as Matic, and the specific details of the problem (if an alarm is issued, the type of alarm). After filling in the form, please contact the place of purchase or our company.
Sticker attached to the side of the product
Check sheet
If you would like a detailed diagnosis, please fill out the “Check Sheet” and
Please contact the place of purchase or our contact information above.
Inquiries about model selection
When selecting an oilmatic or purematic model,
Please fill out the “Model Selection Survey Sheet” and contact us.
