23
P/N 30149, Rev. G [12/15/2016]
C.1 Troubleshooting
WARNING
Electrical shock hazard. Only a trained, experienced
service technician should perform troubleshooting
procedure. Failure to do so could result in death or
serious injury.
!
C.2 Preliminary Steps:
Consult Beckett or Riello instruction manuals provided
with oil burner for specific information regarding oil burner
primary control sequence of operation, diagnostics and
troubleshooting.
Check diagnostic light for indications of burner condition.
NOTICE
When simulating call for heat at oil primary
control, disconnect at least one thermostat lead
wire from T - T terminals to prevent damage to
thermostat. Neglecting this procedure may burn out
heat anticipator of standard 24 vac thermostat, or
cause harm to components within micro-electronic
thermostat.
Before checking oil primary control, perform these
preliminary checks, repair or replace controls as necessary:
• Check power supply, fuse box or breaker, any service
switches, all wiring connections, and burner motor
reset button (if equipped).
• Check limit switches to ensure switch contacts are
closed.
• Check electrode gap and position.
• Check contacts between oil primary control and
electrodes.
• Check oil supply (tank gauge).
•
Check oil nozzle, oil filter, and oil valves.
• Check piping or tubing to oil tank.
• Check oil pump pressure.
C.3 Check Oil Primary Control
If the trouble does not appear to be in the burner or ignition
hardware, check the oil primary control per manufacturer's
instructions inlcuded with oil burner.
APPENDIX C - SEQUENCE OF OPERATION AND TROUBLESHOOTING
Содержание BML-60BRBU2
Страница 20: ...20 P N 30149 Rev G 12 15 2016 APPENDIX B WIRING DIAGRAMS Chimney Vent Furnace Wiring Diagram BML BMLV ...
Страница 21: ...21 P N 30149 Rev G 12 15 2016 APPENDIX B WIRING DIAGRAMS Direct Vent Furnace Wiring Diagram BML BMLV ...
Страница 31: ...31 P N 30149 Rev G 12 15 2016 Model BML and BMLV Diagram Direct Drive Model Shown 37 ...
