TM 10-7360-226-13&P
0018 00
CONTAINERIZED KITCHEN (WITH TRAILER)
UNIT MAINTENANCE PROCEDURES
As the LED turns on during the cycle, check the voltage at the air conditioner terminal board. A
voltage of 12 VDC should be noted as each LED lamp comes on. See Figure 3.
Operation
Indicator Status (Green)
Indicator Status (Red)
A/C Off
Damper Open
Low Cool (first 2 minutes)
Damper Open
A/C 1, Compressor 1
Low Cool
A/C 1, Evaporator Blower Low
A/C 1, Condenser Blower Low
Low Cool (second 2 minutes)
Damper Open
A/C 1, Compressor 1
Low Cool
A/C 1, Compressor 2
A/C 1, Evaporator Blower Low
A/C 1, Condenser Blower Low
High Cool (first 2 minutes)
Damper Open
A/C 1, Compressor 1
High Cool
A/C 1, Evaporator Blower High
A/C 1, Condenser Blower High
High Cool (second 2 minutes)
Damper Open
A/C 1, Compressor 1
High Cool
A/C 1, Compressor 2
A/C 1, Evaporator Blower Low
A/C 1, Condenser Blower Low
High Cool (third 2 minutes)
Damper Open
A/C 1, Compressor 1
High Cool
A/C 1, Compressor 2
A/C 1, Evaporator Blower Low
A/C 1, Condenser Blower Low
A/C 2, Compressor 1
A/C 2, Evaporator Blower High
A/C 2, Condenser Blower High
High Cool (fourth 2 minutes)
Damper Open
A/C 1, Compressor 1
High Cool
A/C 1, Compressor 2
A/C 1, Evaporator Blower Low
A/C 1, Condenser Blower Low
A/C 2, Compressor 1
A/C 2, Compressor 2
A/C 2, Evaporator Blower Low
A/C 2, Condenser Blower Low
Heat
Heat
A/C 1, Evaporator Blower High
A/C 1, Heater Relay
Figure 2. Air Conditioner Sequential Status.
If the diagnostic sequence is correct and the output voltages (12 VDC) are correct at each
terminal board connection on the air conditioner, the ECU controller board is functioning
properly, and the fault is in the air conditioner. Replace the air conditioner using the procedure
in the next section.
0018 00-3
Change 2
