Manual for MPR-411F

Manual for MPR-411F

Brand: SANYO

Category: Refrigerator

Document Type: Manual

Language: EN

Uploaded: Nov. 21, 2025, 7:16 p.m.

Start-up of Unit

  1. Connect the unit to a dedicated power supply. Do not put any product in the unit at this time.
  2. On start-up, the alarm buzzer may operate. Press the alarm buzzer stop key (BZ) to silence it.
  3. Set the desired temperature using the control panel.
  4. Confirm that the chamber temperature is at the desired temperature.
  5. Begin slowly placing product into the chamber to minimize temperature rise.

Control Panel Operation

Temperature Setup: Use the display select key (REF./FREEZ.) to choose refrigerator or freezer. Use the SET key to enter temperature setup mode. Adjust digits using the digit shift key (►) and numerical value shift key ( ). Press SET again to accept the new temperature.

Key Lock: To prevent tampering, press and hold the digit shift key (►) for 5 seconds to enter key lock mode. Set the lower digit to "1" using the numerical value shift key ( ) and press SET to lock. Press and hold again to unlock.

Defrost Cycles

Refrigerator: Automatic cycle defrost. Forced defrost can be initiated if needed.

Freezer: Manual defrost. Turn the freezer switch to OFF, remove contents, defrost manually, and turn back ON.

Troubleshooting and error codes

If the unit malfunctions, check out the following before calling for service.
If nothing operates even when plug in
  1. The unit is not connected to the power supply or capacity of power source enough.
  2. There is a power failure.
  3. The fuse is blown or the circuit breaker is activated.
When the unit does not accept changes of set-point temperature
  1. The key lock is "OFF"?
When alarm is activated

On start-up

  1. The temperature in the unit does not match set value.

In use

  1. The door was kept opened for long time.
  2. The set value was changed.
  3. The containers of high temperature (load) were put in the unit.

In these cases, alarm is removed automatically by running the unit for several hours.

When the unit does not get cold enough
  1. The air exhaust vent is blocked by refrigerator contents.
  2. A large amount of warm product was put in the unit.
  3. There is any heat sources in the unit.
  4. The door is opened frequently.
  5. The ambient temperature is too high.
  6. The unit is in direct sunlight.
  7. The door is not securely closed.
  8. The door seal is damaged or foreign substance inserted between the door gaskets.
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