Thermo King SR-2 SmartReefer2 - 91 Check Electric Ready Input

Section 5 – SR-2 Diagnostics
91 CHECK ELECTRIC READY INPUT
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Alarm Type
Log or Prevent Alarm
Associated Alarm
Codes
Alarm Code 84 Restart Null
How Alarm is Set
Alarm will be set during electric mode operation if the microprocessor determines that 3∅ power is not connected
(ER input is low).
This alarm will only be set if the unit is configured for manual switchover from electric to diesel.
How Alarm is Cleared
This alarm is cleared manually.
Considerations
This alarm becomes a Log alarm if the unit is switched from electric mode to diesel mode.
Diagnostic Procedure
CAUTION: High voltage is present any time the unit is connected to standby power. Exercise extreme
care.
1. Check the ER-01 Circuit from the phase detect module for 12 volts to chassis ground when standby power is
connected to the unit.
2. Check the 8 circuit at the phase detect module for 12 volts.
3. Check to be sure standby power of the correct voltage is present at L1, L2 and L3 on the phase detect module.
4. Check the ER-01 Circuit for continuity from J6 pin 5 on the interface board to the phase detect module.
5. If steps 1-5 above are correct, check the control system, using Service Procedure A01A.
6. If steps 1, 2, 4 or 5 above do not correct the fault, replace the phase detect module.
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02 February 2005