Hoshizaki FTC-120MDA, Service Manual

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[h] CHECKING SET POINT TEMPERATURE
Note: See “5. CONTROLLER” for the operation panel key locations.
RTC series
Press and hold the up key on the operation panel to display the set point temperature on
the screen. When releasing the up key, the screen displays the cabinet temperature again.
FTC series
Press and hold the set key on the operation panel for 3 seconds to display “SEt” on the
screen. Press the set key again to display the set point temperature on the screen. After 10
seconds, the screen displays the cabinet temperature again.
[i] MANUAL DEFROST
To start the manual defrost cycle, press the defrost/rest key (RTC series) or defrost key (FTC
series) for 3 seconds. The defrost indicator light on the operation panel comes on when the
defrost cycle starts.
[j] ERROR CODES
RTC series
Code Possible Cause Operation and Remedy
E1 Cabinet sensor (interior
thermistor) error
Compressor shuts down. Press any key to stop beep.
When troubleshooting is over, system recalculates
compressor delay time. See “III. 1. ERROR CODES” for
further details.
E2 Evaporator (defrost
thermistor) error
Defrost termination temperature is invalid. Press any key to
stop beep. See “III. 1. ERROR CODES” for further details.
FTC series
Code Possible Cause Operation and Remedy
HHH Cabinet sensor
(interior thermistor)
error
Compressor cycles on for 45 minutes
and off for 15 minutes. Check cabinet
temperature. See “III. 1. ERROR
CODES” for further details.
LLL
HHH
* With [6] down key pressed
Cabinet sensor
(defrost thermistor)
error
Forcibly finishes defrost cycle at
the end of defrost time. See “III. 1.
ERROR CODES” for further details.
LLL
* With [6] down key pressed
* The code “dF” is not an error code but indicates the unit is in defrost cycle.
* When the defrost thermistor is defective, error code will not be displayed without [6]
down key being pressed. See “II. 5. [b] FTC SERIES” for operation panel detail.