Wolf Sub-Zero ICB400 Series Service Manual page 21

Electronic Control System
Sabbath Mode (Lights Off Mode)
Sabbath Mode was incorporated into the electronic control system for the observance of certain religious days.
Initiating Sabbath Mode disables the LEDs and lighting system.
To initiate Sabbath Mode, the unit must first be switched OFF using the POWER key
and hold the POWER key for ten (10) seconds, until the LEDs and lights switch OFF
normal operation, press and release the POWER key.
NOTE: During Sabbath Mode, the evaporator fans may function when the door is open.
NOTE: During Sabbath Mode, the LEDs are disabled and set-points cannot be changed.
Figure 3-12. Initiate Sabbath Mode, Press and Hold POWER Key for 10 Seconds
Showroom Mode
Showroom Mode was incorporated into the electronic control system so the appliance could be displayed in a show-
room setting. When in Showroom Mode, all cooling functions are disabled, but the lighting system remains active.
To initiate Showroom Mode, the unit must first be switched OFF using the POWER key
press and hold the upper compartment WARMER and COLDER keys, and the POWER key, then release all three
keys (See Figure 3-14).
operation, and/or compressor operation. To return the unit to normal operation, repeat the steps above.
NOTE: Always check set-points after returning unit to normal operation.
Press Upper COLDER and WARMER Keys and POWER Key, then Release
7011544 - Revision A - November, 2008
International W
International W
Figure 3-11. Switch Unit OFF First
The unit is is now in Showroom Mode. This can be verified by checked for evaporator fan
Figure 3-13. Switch Unit OFF First
Figure 3-14. Initiate Showroom Mode,
ine Storage
ine Storage
(ICB400)
(ICB400)
Hold for 10 Seconds
3-8
Series
Series
(See Figure 3-11), then press
(See Figure 3-12). To return to
(See Figure 3-13). Then