Thermo King 098203, Maintenance Manual

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Diagnosis: Troubleshooting, Warnings and Alarm Codes
253
141 Power Module Heat Exchanger Too Hot
• Occurs if the power module heat exchanger
temperature gets above 105C.
• Since activating the heating element is the far
most heat applying solid state switch, activating
is bypassed to reduce temperature.
• Indicates:
• Poor cooling to the back side of the control box.
• Check for blocked air flow to the back side of
the control box.
• Ambient temperature might just be high.
157 Data Logger Battery Failure
Firmware version 3.3.0 or newer:
• Occurs if the battery is connected and the battery
protection circuit is activated as a result of
over-current, over-charge or over-discharge.
• Battery voltage must stay below 2.5V after the
battery has been charged for 3 minutes.
• Check the battery physically, dismount and
examine wires and the connection to the
controller.
• Replace battery.
Alarm Codes, Descriptions and Corrective Actions (Continued)
Code Description Corrective Action