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Page 106
Bradford White Corp.
Code Description
L or
H
Procedure
129
Fan speed failed during preignition
H or
L
1. Check wiring and correct any potential wiring
errors.
2. Check the VFDs (Variable-speed Fan Drive)
ability to change speeds.
3. Change the VFD
4. If the fault persists, replace the module.
130
Fan speed failed during ignition
H or
L
1. Check wiring and correct any potential wiring
errors.
2. Check the VFDs (Variable-speed Fan Drive)
ability to change speeds.
3. Change the VFD
4. If the fault persists, replace the module.
131
Fan movement detected during standby H
1. Check wiring and correct any potential wiring
errors.
2. Check the VFDs (Variable-speed Fan Drive)
ability to change speeds.
3. Change the VFD
4. If the fault persists, replace the module.
132
Fan speed failed during run
H
1. Check wiring and correct any potential wiring
errors.
2. Check the VFDs (Variable-speed Fan Drive)
ability to change speeds.
3. Change the VFD
4. If the fault persists, replace the module.
137
ILK (Interlock) failed to close
H
1. Check wiring and correct any possible shorts.
2. Check Interlock (ILK) switches to assure
proper function.
3. Verify voltage through the interlock string to
the interlock input with a voltmeter.
4. If steps 1-3 are correct and the fault persists,
replace the module.
149
Flame detected
H or
L
Holds if flame detected during Safe Start check up
to Flame Establishing period.
150
Flame not detected
H
Sequence returns to standby and restarts sequence
at the beginning of Purge after the HF switch
opens if flame detected during Safe Start check up
to Flame Establishing period.
154
Purge Fan switch On
H or
L
1. Purge fan switch is on when it should be off.
2. Check wiring and correct any errors.
3. Inspect the Purge Fan switch J6 terminal 3 and
its connections. Make sure the switch is working
correctly and is not jumpered or welded.
4. Reset and sequence the relay module.
5. If the fault persists, replace the relay module.
Содержание BNTH1000
Страница 2: ...Bradford White Corp...
Страница 12: ...Page 8 Bradford White Corp Fig 6 Dimensions BNT 1700...
Страница 38: ...Page 34 Bradford White Corp Fig 21 Ladder Diagram...
Страница 39: ...Page 35 Brute Elite Boilers and Water Heaters Fig 22 Wiring Diagram...
Страница 40: ...Page 36 Bradford White Corp...
Страница 52: ...Page 48 Bradford White Corp Fig 51 Connection Terminals...
Страница 129: ...Page 125 Brute Elite Boilers and Water Heaters Fig 140 Machine Frame BNT1000 13 3 PARTS ILLUSTRATIONS...
Страница 130: ...Page 126 Bradford White Corp Fig 141 Rear Panel BNT1000 Fig 142 Rear Panel BNT1700...
Страница 131: ...Page 127 Brute Elite Boilers and Water Heaters Fig 143 Machine Frame BNT1700...
Страница 132: ...Page 128 Bradford White Corp Fig 144 Front Panels and Covers BNT1000 and BNT1700...
Страница 133: ...Page 129 Brute Elite Boilers and Water Heaters Fig 145 Burners and Combustion Chamber BNT1000...
Страница 134: ...Page 130 Bradford White Corp Fig 146 Burners and Combustion Chamber BNT1700...
Страница 136: ...Page 132 Bradford White Corp Fig 149 Burner Detail BNT1700...
Страница 137: ...Page 133 Brute Elite Boilers and Water Heaters Fig 150 Electronic Components Fig 151 Condensate Trap BNT1000...
Страница 138: ...Page 134 Bradford White Corp Fig 152 Condensate Trap BNT1700 Fig 153 Flow Switch BNT1000 and BNT1700...
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Страница 140: ...Page 136 Bradford White Corp This page intentionally left blank...