REB On Back Up Battery, Alarms Disabled

The REB board is operating on its backup battery; telematics alarms may be limited.

Possible causes

Loss of main power to the board
Unit switched off but REB remains active
Open microprocessor fuse

Recommended actions

Verify unit main switch
Check permanent power fuse
Charge backup battery if low

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Other Thermo King codes

00No Alarms Exist 02Check Evaporator Coil Sensor (Zone)03Check (Control) Return Air Sensor (Zone)04Check (Control) Discharge Air Sensor (Zone)05Check Ambient Temp Sensor 06Check Coolant Temp Sensor

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