Alto-Shaam QC-20 Refrigerator User Manual


 
QUICKCHILLER INSTALLATION/OPERATION/SERVICE MANUAL 30.
S E R V I C E
C O N T R O L E R R O R DI S P L AY S
C
ONTROL DISPLAY
A
CTION REQUIRED
Real Time Clock Bad
Call service for replacement of defective control.
NOTE: B
EFORE
C
ALLING
S
ERVICE
If the Quickchiller has
been unplugged for an extended period of time, the
Real Time Clock may only require recharging.
Disconnect the unit from the power source. Plug the
unit back into the proper receptacle and wait for a
minimum of 30 minutes. If the error message remains
in the display, repeat this procedure. If the error
message still remains, call service.
Using Default Calibration Values
This error message indicates the control memory is not
correctly reading factory-set calibration values. The
Quickchiller will remain operational but the temperature
values may not be accurate. Call Service.
Using Default Function Values
This error message indicates the control memory is not
correctly reading user-set values. The Quickchiller will remain
operational but the control will not “remember” the last control
settings. The control will revert to factory default settings and
will require operator modification each time the unit is used.
Call Service.
Probe Open/Shorted
This error message indicates a problem with the probe
identified within the display. The Quickchiller will operate
normally in the Time mode but will not operate in the Probe
mode. Call service.
Cavity Open Shorted
This error message indicates a problem with the interior cavity
sensor. The Quickchiller will not operate in any operational
mode. Call service.
Coil Open Shorted
This error message indicates a problem with the display
identified coil sensor. The Quickchiller will remain operational
but will extend the defrost cycle to the full period of 20
minutes. Call service.