Electrical Diagnosis (Rev 6/98)
108
Faulty high speed solenoid (HSS)
Test HSS
Faulty 7D circuit
Test 7D circuit
Poor ground to HSS
Test CHS circuit
Unit will not heat
Fault in 26 circuit
Test 26 circuit
Faulty pilot solenoid coil
Test pilot solenoid coil
Poor power to pilot solenoid coil
Test power to pilot solenoid coil
Defective microprocessor
Replace microprocessor
Defective relay logic board
Replace relay logic board
Fault in 14P circuit
Test 14P circuit
Damper relay will not energize
Defective K3 relay
Remove and test K3 relay
Fault in 8F circuit
Test 8F circuit
Fault in 29P circuit
Test 29P circuit
Defective microprocessor
Replace microprocessor
Defective relay logic board
Replace relay logic board
Damper door will not close
Damper
relay
not
energizing
See (Damper relay will not
energize)
Faulty damper solenoid
Test damper solenoid
Fault in 29 circuit
Test 29 circuit
Fault in damper solenoid ground
Test CH ground to solenoid
Hot gas solenoid will not energize Fault in 8F circuit
Test 8F circuit
Fault in HGR circuit
Test HGR circuit
Defective microprocessor
Replace microprocessor
Defective relay logic board
Replace relay logic board
Defective hot gas solenoid
Test hot gas solenoid
Fault in HGB circuit
Test HGB circuit
Faulty ground to hot gas solenoid
Test CHG ground circuit
Modulation valve not operating
Fault in 8F circuit to valve
Test for voltage on 8F
Fault in MV1 circuit to valve
Test MV1 circuit
CONDITION
POSSIBLE CAUSE
REMEDY
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 ...