Manual for MDF-U334

Manual for MDF-U334

Brand: Panasonic

Category: Medical Equipment

Document Type: Manual

Language: EN

Available Languages: EN , ES

Uploaded: Nov. 21, 2025, 6:13 p.m.

Warranty Information

Contact sales representative or agent for warranty details and replacement of parts.

Start-Up of Unit

  1. Connect the power cord to the dedicated outlet with appropriate rating.
  2. Turn on the power switch.
  3. Turn on the battery switch. The alarm buzzer sometimes operates. In this case, stop the buzzer by pressing the alarm buzzer stop key (BUZZER).
  4. Set the chamber temperature to the desired temperature.
  5. Allow the chamber temperature to fall to the desired temperature. Check the chamber temperature on the digital temperature indicator.
  6. Press the alarm test key (ALARM TEST) and check that the alarm lamp blinks and alarm buzzer activates. Also, the remote alarm is activates. Note: E09 is displayed on the digital temperature indicator when the battery switch is OFF.
  7. Begin slowly placing items into the chamber to minimize the temperature rise.

Chamber Temperature Setting

Table 1 shows the basic procedure for setting the chamber temperature. Perform key operations in the sequence indicated in the table. The example in the table is based on the assumption that the desired temperature is -25°C. Note: Factory setting is the chamber temperature -30°C.

Troubleshooting and error codes

Malfunction Check/Remedy
The chamber is not cooled at all The circuit breaker of power source is active.
The voltage is too low (In this case, call an electrician.)
The power switch is not ON.
The large amount of articles (load) is stored in the chamber at one time.
The cooling is poor The freezer is in defrost condition.
The ambient temperature is too high.
The door is not closed firmly.
The large amount of frost is built on the chamber wall.
The set temperature is not inputted properly.
The freezer is in the direct sunlight.
There is any heating source near the freezer.
When the unit does not accept changes of temperature setting A rubber cap and insulation for the access port are not set correctly.
You put too many unfrozen articles into the freezer compartment.
Noise The key lock is set in ON mode.
Noise The freezer is not installed on the sturdy floor.
The freezer is not leveled with the leveling feet.
There is anything touching the frame.
The freezer is in the status immediately after start up.
The unit sometimes causes a noise when the chamber temperature is high due to the large load. The noise gets less and less accompanying with the cooling of the chamber.
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