Thermo King T-1000R Series Maintenance Manual page 60

Pretrip Alarm Codes
If an alarm occurs during a Pretrip Test the alarm
code will be displayed as Pretrip Alarm XX,
where XX is the alarm code.
Alarm Codes When Switching Between
Diesel and Electric
If a shutdown alarm occurs that affects only diesel
mode operation and the unit is switched to
electric, the diesel mode shutdown alarm becomes
an electric mode log alarm. This allows the unit to
run in electric mode without clearing the
shutdown alarm that is preventing diesel mode
operation. If the unit is switched back to diesel
mode, the alarm again become a diesel mode
shutdown alarm and prevents unit operation.
In the same manner, if a shutdown alarm occurs
that affects only electric mode operation and the
unit is switched to diesel, the electric mode
shutdown alarm becomes a diesel mode log alarm
to allow diesel mode operation. If the unit is
switched back to electric mode, the alarm reverts
to an electric mode shutdown alarm and prevents
unit operation. If the unit is configured for electric
to diesel autoswitch, it automatically starts and
runs in diesel mode if an electric shutdown
occurs.
Alarm Code Notification
The Alarm Icon used in previous Thermo King
controllers has been incorporated. If a Check
alarm condition occurs the Alarm Icon will appear
in the display as shown in Figure 92.
Figure 92: Alarm Icon
If a Shutdown Alarm occurs it will be indicated
by all of the following:
1. The Alarm Icon will appear.
2. The display and backlight will flash on and
off.
Operating Instructions for Premium HMI Control Panel
3. The display will switch from normal video to
reverse video and back to normal video.
(Light areas become dark and dark areas
become light.)
Clearing Alarm Codes
Most alarm codes can be cleared conventionally
from the Alarm Menu using the CLEAR key.
The following control and display sensor alarm
codes can only be cleared from the Maintenance
Menu or Guarded Access Menu:
• Alarm Code 03 Check Control Return Air
Sensor
• Alarm Code 04 Check Control Discharge Air
Sensor
The following alarm codes clear automatically.
• Alarm Code 64 Pretrip Reminder - Clears
when a Pretrip Test is performed.
• Alarm Code 84 Restart Null - Clears when the
unit is no longer in a restart null due to a
Prevent Alarm.
• Alarm Code 85 Forced Unit Operation -
Clears when the unit is no longer running in a
forced mode due to a Prevent Alarm.
• Alarm Code 91 Check Electric Ready Input -
Clears automatically when the unit starts
running.
• Alarm Code 92 Sensor Grades Not Set -
Clears when the sensor grade is changed from
5H.
If the Limited Alarm Restarts feature is enabled
the following additional alarm codes may only be
cleared from the Guarded Access Menu. If this is
the case, the CLEAR soft key will not appear if
the alarms are displayed from the Main Menu or
the Maintenance Menu.
• Alarm Code 10 High Discharge Pressure
• Alarm Code 23 Cooling Cycle Fault
• Alarm Code 24 Heating Cycle Fault
• Alarm Code 32 Refrigeration Capacity Low
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