Phcbi MDF-MU300H, Operating Instructions Manual

19

   ROUTINE MAINTENANCE 

WARNING

Always disconnect the power supply to the unit prior to any repair or maintenance

 of the unit in 

order to prevent electric shock or injury. 

Ensure you do not inhale or consume medication or aerosols

 from around the unit at the time of 

maintenance.    These may be harmful to your health. 

CAUTION

Always put on the dry gloves to protect the hands

 at the time of maintenance.    No gloves may cause 

cut of the finger by the edge or corner. 
 

  Cleaning of cabinet

■

 Clean the unit once a month.    Regular cleaning keeps the unit looking new. 

■

 Use a dry cloth to wipe off small amounts of dirt on the outside and inside of the unit and all 

accessories.  If the outside panels are dirty, clean them with a diluted neutral dishwashing detergent.  
(Undiluted detergent can damage the plastic components.    For the dilution, refer to the instruction of the 
detergent.)    After the cleaning with the diluted detergent, always wipe it off with a wet cloth.    Then wipe 
off the cabinet or accessories with a dry cloth. 

■

 Never pour water onto or into the unit.    Doing so can damage the electric insulation and cause failure. 

■

 The compressor and other mechanical parts are completely sealed.    This unit requires absolutely no 

lubrication. 

■

 Clean or defrost the chamber once a month. 

  Defrosting

 
This product is refrigerated by the direct cooling.  When it uses for a long time, frost appears on the 
chamber wall side.  It cannot be cooled down when there is much amount of frost.  The defrost is 
mentioned in the following. 
 
Use the scraper provided for removing the frost if the freezer operation must be continued.  Pay 
attention not to impact or damage the inner wall. 

■

Forced defrost

1.

 When defrosting, temporarily move all the contents of containers in the freezer to another 

low-temperature freezer.

2.

 Remove all storage containers other than the empty defrost water vessel & storage container 

(MDF-MU300H) or the bottom storage container (MDF-MU500H). 

3.

 Press the defrost key (DEF) for 5 seconds to stop the refrigerating operation.    While the refrigerating 

operation is stopped, the current chamber temperature and dF is displayed on the control panel 
alternately. 

4.

 After a several hours, check visually that all defrost was removed completely. 

5.

 Throw out the water that has accumulated in the container, then wipe the container and the chamber. 

6.

 Replace all containers and press the defrost key (DEF) so that the refrigerating operation can be 

started. 

7.

 Once the chamber temperature has dropped to the desired temperature, place the original contents 

back in the chamber.