Hoshizaki HWR68A(-D) Manuel D’Utilisation

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3) Press the 

 unmarked, blank button to display the current setting. Press the 

 up or 

 down button to increase or decrease the defrost termination temperature. 

Note: The defrost termination temperatures can be adjusted within the following ranges:

• Refrigerator: 59 to 68°F (15 to 0°C) in one degree increments 
• Freezer: 41 to 68°F (5 to 0°C) in one degree increments 

4) Press the 

 unmarked, blank button to save the setting.

5) Press the MANUAL DEFROST button to return to the menu screen. Press and hold 

both the

 button and the 

 unmarked, blank button for 5 seconds to exit the setting 

mode and return to the temperature display.

6) If a jumper was present between connector K151 pins 7 and 8, reconnect it after all 

setting and diagnostic work is complete.

To change the differential, follow the steps below.

1) Make sure the jumper is removed between connector K151 pins 7 and 8 on the control 

board. Otherwise you will not be able to access this setting. For details, see "D.1. 
Gaining Access to Settings and Diagnostics."

) Press and hold both the 

 button and the 

 unmarked, blank button for 5 seconds. 

"F0" should appear in the display window. Press the MANUAL DEFROST button until 
"F" appears in the display window.

3) Press the 

 unmarked, blank button to display the current + setting (the decimal 

between the digits is not shown). Press the 

 up or 

 down button to increase or 

decrease the + (plus) differential in .9°F increments. 
Note: 

• Both the + and - values can be adjusted between 0.0 and 6.3°F in .9°F increments 

(0.0 to 3.5°C in .5°C increments).

• You cannot set both + and - to 0.0.

4) Press the 

 unmarked, blank button to save the + setting and move to the - (minus) 

differential setting.

5) Press the 

 up or 

 down button to increase or decrease the - (minus) differential in 

.9F increments.
Note: 

• Both the + and - values can be adjusted between 0.0 and 6.3°F in .9°F increments 

(0.0 to 3.5°C in .5°C increments).

• You cannot set both + and - to 0.0.

6) Press the 

 unmarked, blank button to save the - (minus) setting. The - (minus) sign 

will turn off and the display will change to the + (plus) differential setting.

7) Press the MANUAL DEFROST button to return to the menu screen. Press and hold 

both the

 button and the 

 unmarked, blank button for 5 seconds to exit the setting 

mode and return to the temperature display.

8) If a jumper was present between connector K151 pins 7 and 8, reconnect it after all 

setting and diagnostic work is complete.