Blodgett SB-6G Installation Operation & Maintenance page 23

BURNERS PRODUCE CARBON DEPOSITS
1. Wrong size orifices.
2. Burner air not adjusted properly.
3. Wrong gas supply.
4. Incorrect pressure at supply.
BURNERS DO NOT COME ON
1. Gas supply to unit is "OFF".
2. Manual shut off valve is "OFF".
3. Pilot is out.
4. Power supply is "OFF".
5. Water level has not been reached. Check water supply and water level control.
6. Pilot may require flame adjustment on option electronic ignition units.
7. If water at proper level, check relay which energizes pressure switch and gas valve.
8. Pressure switch may need to be replaced if relay is operating.
9. Check gas control. If energized but not operating, have replaced.
PILOT LIGHT DOES NOT IGNITE (ELECTRONIC IGNITION)
1. Gas control knob is in "OFF" position.
2. Loose or dirty wire connection to ignition module, clean/or tighten.
3. Ignition cable shorting out. Check that it is not in contact with metal or damaged.
4. Defective ignition module.
5. Unit is 100% lock out. Turn off and try in five minutes.
6. Dirty flame sensor. Clean with emery cloth.
7. Pilot burner/ignitor sensor, cracked ceramic insulator. Have replaced.
8. Check for too much draft in room.
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