![background image](http://html1.mh-extra.com/html/thermo-king/sr-2-smartreefer2/sr-2-smartreefer2_diagnostic-manual_1104380226.webp)
Section 5 – SR-2 Diagnostics
36 ELECTRIC MOTOR FAILED TO RUN
Page 1 of 1
Alarm Type
Log, Check, Prevent, or Shutdown Alarm
Associated Alarm
Codes
Alarm Code 84 Restart Null
Alarm Code 122 Check Diesel/Electric Circuit
How Alarm is Set
The alternator frequency is less than 200 Hz for 10 seconds.
How Alarm is Cleared
This alarm is cleared manually.
Considerations
This alarm becomes a log alarm if the unit is switched to diesel.
Diagnostic Procedure
1. Check the motor, motor contactor, overload relay and other associated motor circuitry. The internal pull
coil/hold coil circuits in the contactor may be defective, requiring replacement of contactor.
2. Check the voltages at the phase detect module. Battery voltage should be present on the ER wire and the 8
wire.
3. Check the standby power voltage at the phase detect module. Standby power should be available at L1, L2
and L3.
4. Check the voltage at the motor contactor coils. Battery voltage should be present on either the 7EC or 7EB
wire when the motor should be running.
5. Check for reason that the motor fails to turn the alternator, such as slipping belts, clutch, etc.
6. Check the alternator, as shown under Alarm Code 25. Pay particular attention to the AC signal on the W
circuit. From 0.5 to 13.0 volts AC should be present on the W circuit when the alternator is operating.
5-44
02 February 2005
Summary of Contents for SR-2 SmartReefer2
Page 4: ......
Page 7: ...Tab goes here and the next page should be GREEN Section 1 Safety...
Page 8: ......
Page 10: ...Section 1 SR 2 Safety Information 1 2 18 January 2005...
Page 14: ...Section 1 SR 2 Safety Information 1 6 18 January 2005...
Page 15: ...Tab goes here and the next page should be GREEN Section 2 Hardware Description...
Page 16: ......
Page 48: ...Section 2 SR 2 Hardware Description 2 32 31 January 2005...
Page 49: ...Tab goes here and the next 2 pages should be GREEN Section 3 Software Description...
Page 50: ......
Page 96: ...Section 3 SR 2 Software Description 3 46 31 January 2005...
Page 97: ...Tab goes here and the next page should be GREEN Section 4 Operation...
Page 98: ......
Page 181: ...Tab goes here and the next 2 pages should be GREEN Section 5 Diagnostics...
Page 182: ......
Page 266: ...Section 5 SR 2 Diagnostics 5 84 02 February 2005...
Page 267: ...Tab goes here and the next page should be GREEN Section 6 Service Procedures...
Page 268: ......
Page 270: ...Section 6 SR 2 Service Procedure Index Page 2 01 February 2005...
Page 282: ...Section 6 SR 2 Service Procedure A01B Page 6 P41RA01B 31 January 2005...
Page 298: ...Section 6 SR 2 Service Procedure A02A Page 12 P41RA02A 02 February 2005...
Page 318: ...Section 6 SR 2 Service Procedure A03B Page 4 P41RA03B 30 January 2005...
Page 338: ...Section 6 SR 2 Service Procedure A15A Page 4 P41RA15A 30 January 2005...
Page 360: ...Section 6 SR 2 Service Procedure A46B Page 8 P41RA46B 30 January 2005...
Page 366: ...Section 6 SR 2 Service Procedure A48A Page 6 P41RA48A 30 January 2005...
Page 376: ...Section 6 SR 2 Service Procedure A50A Page 6 P41RA50A 31 January 2005...
Page 394: ...Section 6 SR 2 Service Procedure F08A Page 4 P41RF08A 30 January 2005...
Page 398: ...Section 6 SR 2 Service Procedure F09A Page 4 P41RF09A 30 January 2005...
Page 402: ...Section 6 SR 2 Service Procedure G03A Page 4 P41RG03A 31 January 2005...
Page 406: ...Section 6 SR 2 Service Procedure H04A Page 4 P41RH04A 30 January 2005...
Page 407: ...Tab goes here and the next page should be GREEN Section 7 Service Information...
Page 408: ......
Page 410: ...Section 7 SR 2 Information 7 2 02 February 2005...
Page 419: ...Tab goes here and the next page should be GREEN Section 8 Schematics and Wiring Diagrams...
Page 420: ......
Page 422: ...Section 8 SR 2 Drawings 8 2 01 February 2005...
Page 424: ...Section 8 SR 2 Drawings 8 4 01 February 2005...
Page 425: ...8 5...
Page 426: ...8 6...
Page 427: ...8 7...
Page 428: ...8 8...
Page 429: ...8 9...
Page 430: ...8 10...
Page 431: ...8 11...