Carrier NDK33BN0KB, Operation & Service Manual

Page: 61 / 270

62-61753-21 3-13
3.9 MANUAL DEFROST
COOL DEFROST ALARM START-STOP
E R U T A R E P M E T X O B T N I O P T E S
ALARM LIST
SELECT MANUAL
DEFROST
S U O U N I T N O C T A E H
DEFROST CYCLE STARTED
START--STOP/
CONTINUOUS
DEFROST LIGHT
1. Press the MANUAL DEFROST key. The DEFROST light will come on and the
MessageCenter will display “DEFROST CYCLE STARTED” for 5 seconds, or
flash “CANNOT START DEFROST CYCLE” for 5 seconds.
dF
--20.0
When DEFROST mode CANNOT be manually initiat-
ed "CANNOT START DEFROST CYCLE" is displayed
in the MessageCenter. This will occur when:

DTT is above 4°C (40°F) OR

The engine has not run 15 seconds after starting
OR

The unit is in Pretrip OR

There is an active shutdown Alarm.
TIP
The Manual Defrost Key can be used at any
time to start a Defrost Cycle as long as the
preceding conditions are met.
NOTE
Refer to Section 4.5.6 for more detailed infor-
mation on DEFROST.