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Fault Indication Diagnosis (Rev 6/98)
116
24 (SH) (*) Heating Cycle Fault
Possible cause: low on refrigerant.
Test procedure: check refrigerant level.
Possible cause: defective three-way valve.
Test procedure: check operation of three-way valve.
Possible cause: defective pilot solenoid.
Test procedure: check pilot solenoid operation.
Possible cause: defective K1 relay.
Test procedure: test K1 relay.
Possible cause: compressor inefficient.
Test procedure: check compressor capacity.
Possible cause: partial obstruction in low side of refrigera-
tion system.
Test procedure: locate and remove obstruction.
Possible cause: iced or dirty evaporator.
Test procedure: inspect/defrost evaporator coil.
Possible cause: fault in 26 circuit.
Test procedure: test 26 circuit.
Possible cause: defective microprocessor.
Test procedure: replace microprocessor.
25 (CH) (SH) (*) Alternator Check
Possible cause: loose or broken alternator belt.
Test procedure: check/tighten belt.
Possible cause: faulty alternator.
Test procedure: test alternator.
26 (CH) (*) Check Refrigeration Capacity
Possible cause: low on refrigerant.
Test procedure: check refrigerant level.
Possible cause: compressor inefficient.
Test procedure: check compressor capacity.
Possible cause: partial obstruction in low side of refrigera-
tion system.
Test procedure: locate and remove obstruction.
Possible cause: iced or dirty evaporator.
Test procedure: inspect/defrost evaporator coil.
Possible cause: faulty expansion valve.
Test procedure: test expansion valve operation.
Possible cause: plugged filter drier.
Test procedure: check filter drier.
Possible cause: defective microprocessor.
Test procedure: replace microprocessor.
27 (SH) (*) Extended Defrost
Possible cause: faulty defrost termination switch.
Test procedure: test defrost termination switch.
Possible cause: damper door not closing.
Test procedure: test damper door operation.
Summary of Contents for Super II SR+
Page 4: ......
Page 10: ...ii ...
Page 14: ...4 ...
Page 22: ...Unit Description Rev 6 98 12 Front View AEA1350 ...
Page 23: ...Unit Description Rev 6 98 13 Right Side Door Open AEA1351 ...
Page 24: ...Unit Description Rev 6 98 14 Left Side Doors Open AEA1352 ...
Page 26: ...Operating Instructions Rev 6 98 16 Control Box Cover AEA1354 ...
Page 34: ...24 ...
Page 42: ...Electronic Controls Rev 6 98 32 SOFTWARE REVISION 04XX ALARMS AEA1358 ...
Page 82: ...72 ...
Page 90: ...80 ...
Page 116: ...106 ...
Page 120: ...110 ...
Page 130: ...120 ...
Page 141: ...131 Schematic Diagram SBIII SII RMNII 30 SR MPIV ...
Page 142: ...132 Wiring Diagram SII SBIII RMN30 SR MPIV Page 1 of 4 ...
Page 143: ...133 Wiring Diagram SII SBIII RMN30 SR MPIV Page 2 of 4 ...
Page 144: ...134 Wiring Diagram SII SBIII RMN30 SR MPIV Page 3 of 4 ...
Page 145: ...135 Wiring Diagram SII SBIII RMN30 SR MPIV page 4 of 4 ...