Hoshizaki HPR100A, Service Manual

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5. Service Menu
The service menu ("F0" to "F9") may be used to change settings, acquire diagnostic
information, and to view alarm history.
To access the "F0" through "F9" service menu selections, you must first disconnect the
service jumper (excluding "F5" which is accessible with or without the service jumper in
place). The service jumper is located behind the wire cover below the control box and
connects the control board K151 connector terminals 7 and 8 (white) together. When the
service jumper is in place, only the "F5" selection is accessible. Be sure to reconnect the
service jumper when finished.
a) Service Menu Access
• Enter Service Menu: Press and hold the cabinet "SET" button and the "SERVICE USE
ONLY" button for 5 seconds. "F0" should appear in the display screen.
• Scroll: Use the up and down arrow buttons to scroll through the service menu list,
settings, and data.
• View Service Menu Setting: Press the cabinet "SET" button to view the selected menu
setting.
• Save Setting: Press the cabinet "SET" button to save the new setting.
• Return to Service Menu List: Press the cabinet "SET" button once again to return to the
main service menu list.
• Exit Service Menu: Press and hold the cabinet "SET" button and the "SERVICE
USE ONLY" button for 5 seconds to exit the service menu at any time. If no button is
pressed, the control board will return to the normal temperature display after 1 minute.
"SERVICE USE ONLY"
button used with cabinet
"SET" button to enter and
exit the service menu.
"UP" and "DOWN" arrow buttons
used to change temperature
settings, scroll through the service
menu, and to change menu settings.
"MANUAL DEFROST"
button used to initiate
a manual defrost
.
"SET" buttons used to view current temperature settings.
Cabinet "SET" button used with "SERVICE USE ONLY"
button to enter and exit the service menu.