29
TROUBLESHOOTING
If the unit malfunctions, check out the following before calling for service.
Malfunction Check/Remedy
If nothing operates even
when plugged in
□
The unit is not connected to the power supply properly.
□
The capacity and voltage of power supply is not sufficient.
□
There is a power failure.
□
The circuit breaker on the supply circuit is activated.
□
The fuse on the supply circuit is blown.
The alarm device is
activated at start-up
The alarm status is kept until the chamber temperature reaches the
set temperature.
The alarm device is
activated during operation
□
The unit is not connected to the power supply properly.
□
The capacity and voltage of power supply is not sufficient.
□
There is a power failure.
□
The circuit breaker on the supply circuit is activated.
□
The fuse on the supply circuit is blown.
□
The chamber temperature setting was changed.
□
The door was kept opened for a long time.
□
The containers of high temperature (load) were put in the chamber.
□
The door is opened.
No key operation is
available
□
The key lock is set in ON (L 1).
→
Set the key lock in OFF (L 0).
During the setting mode,
the mode returns to the
temp. display mode
The setting mode returns to the temperature display mode
automatically when 90 seconds has passed without any key operation
(auto-return function).
Noisy
□
The floor is not sturdy.
□
The installation site is not level.
□
The refrigerator is tilted.
□
The cabinet contacts the surrounding wall.
□
The installation of the evaporating tray or unit cover is improper.
When chamber does not
get cold enough
□
A large amount of items or warm product was put in the chamber.
□
The door is frequently opened.
□
The chamber temperature setting is high.
□
The unit is in direct sunlight.
□
The unit is not installed in the installation site specified in this manual.
□
The ventilation around the unit is blocked.
□
There is a nearby heat source.
□
The ambient temperature is too high.
→
The allowable ambient temperature is between -5
o
C and +35
o
C.
□
The stored items is too much.
□
The air exhaust vent is blocked up with containers.
□
The access port is not covered.
→
The access port should be covered with the insulation and rubber
caps when no use.
□
The door seal is damaged.
→
If it is damaged, contact our sales representative or agent for
replacement.
□
Any foreign substance is located between door gaskets.
Note:
If the malfunction is not eliminated after checking the above items or the malfunction is not shown in the
above table, contact our sales representative or agent.
Summary of Contents for MPR-1014 Series
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