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Daily Inspection and Maintenance
WARNING!
• Disconnect the power cable from the power source when doing an inspection or maintenance unless
needed.
• Perform the daily inspection and maintenance after returning the temperature of this unit to the
normal one.
• Do not disassemble this unit.
CAUTION!
• Use a well-drained soft cloth to wipe dirt on this unit.
Do not use benzene, thinner or cleanser for wiping.
Do not scrub this unit. Deformation, deterioration
or color change may result in.
Monthly maintenance
• Check the earth leakage breaker function.
1. Connect the power cord.
2. Turn the breaker on.
3. Push the red test switch by a ballpoint pen etc.
4. If there is no problem, the earth leakage breaker will be turned off.
• Check the movement of the independent overheating prevention device.
Perform the fixed temperature operation of device with certain preset temperature. Then set the
operation temperature of independent overheating prevention device to the value approximately 5℃
lower than the preset temperature of device.
In normal condition, the device shuts off the heating circuit in a few seconds, at the same time the
TROUBLE lamp lights on and the "Er07" is indicated accompanied with a warning buzzer.
Be sure to check the movement of earth leakage breaker malfunction and overheating prevention device
mentioned above before a long-term continuous operation or unmanned night operation.
For any questions, contact the dealer who you purchased this unit from, or the nearest sales
division in our company.
Maintenance Method
57
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