22
TROUBLESHOOTING
If the unit malfunctions, check out the following before calling for service.
If nothing operates even when switched on
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The power is failed.
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The circuit breaker is inactivated.
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The unit is not connected to the power supply.
The alarm device is activated
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The temperature in the unit does not match the set value. (On start-up)
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The door was kept opened for a long time.
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The high temperature materials (load) were put in the unit.
In these cases, the alarm is removed automatically by running the unit for several hours.
When the unit does not get cold enough
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A large amount of items or warm products was put in the unit.
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The air-exhaust vent is blocked up with containers.
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The unit is in direct sunlight.
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The door is frequently opened.
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A heat source is nearby the unit.
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The ambient temperature is too high.
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The door is not securely closed.
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The heat source is put in the unit.
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The door seal is damaged or foreign substance is inserted between door gasket.
