Newmac LFR-75 - Troubleshooting Chart

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FIGURE 24 TROUBLESHOOTING CHART
PROBLEM CAUSE CORRECTION
Check for Broken Wires
Tighten Connections
Clean Contacts
Thermostat
Replace Thermostat
Burner Motor Overload Tripped Press Rest Button
Ceased Pump Repair or Replace
Burner Motor Fails to Start
Faulty Primary Relay Repair or Replace
Oil Supply Check Oil Supply
Air Leak in Oil Supply Line Tighten Fittings or Replace Line
Oil Line Plugged or Kinked Clean or Repair
Oil Filter Clogged Replace or Clean
Loss of Prime Eliminate Teed Oil Lines
Electrode Setting Adjust Electrodes
Loose or Dirty Nozzle Replace Nozzle
Ignition Transformer Replace Transformer
Burner Motor Overload Trips Press Rest Button
Ceased Pump Repair or Replace
Burner Start--No Flame
Faulty Primary Relay Repair or Replace
Cad Cell Clean or Replace
Oil Line Restricted Clear Restriction
Plugged Fuel Pump Clean Strainer
Loss of Prime Eliminate Teed Oil Lines
Change to #1 Oil
Cold Oil
Convert to One Line System
Adjust Air Settings
Burner Locks out on Safety
Poor Combustion
Ensure Draft is Adequate
Air Leak in Oil Supply Line Tighten Fittings or Replace Line
Loose or Dirty Nozzle Replace Nozzle
Faulty Oil Pump Repair or Replace Pump
Oil Supply Line Ensure Properly Designed
Loss of Prime Eliminate Teed Oil Lines
Electrode Setting Adjust Electrodes
Cracked Electrodes Replace Electrodes
Wrong Nozzle Use Specified Nozzle
Low Oil Pressure Adjust to Correct Setting
Excess Air Adjust Air Setting
Burner Ignition Delayed
Faulty Transformer Replace Transformer
Insufficient Combustion Air Provide Combustion Air
Inadequate Flue Draft Provide Specified Draft
Pump Seal Leaking Repair Pump
Loss of Prime Eliminate Teed Oil Lines
Nozzle Assembly Adjustment Ensure Setting is Correct
Burner Adjustment Check Using Instruments
Blast Tube Burned Off Check Blast Tube
End Cone Wrong or Burned Off Check End Cone
Incorrect Insertion Measure Insertion Depth
Dirty Burner Fan Clean Blades
Damaged Chamber Check Chamber
Clogged Flue Passages Clean Flue Passages
Nozzle After Drip Check Fuel Delivery System
Fumes & Odors From Burner
Unspecified Nozzle Replace Nozzle