How to Test a Beckett Burner


Beckett produces several residential oil burning heater models; the ADC, New NX, AFII, AF, AFG, SDC and the SF/SM. These oil burning models are found in several home furnaces. The NX edition is featured in furnaces produced by Buderus, Biasi, Peerless Heater, Crown Boiler Company, Boyertown Furnace, Burnham, Weil-McLain, Slant Fin, Viessmann, Thermo Dynamics and Triangle Tube. Testing the Beckett burner should be performed annually on these units.

Things You'll Need

  • Electrical multimeter
  • Combustion analyzer
  • Pressure gauge
  • Draft meter
  • Transformer tester
  • Vacuum gauge
  • Screwdriver
  • Screwdriver bits
  • Pliers

Testing a Beckett Oil Burner on a Furnace

  • Check the emergency switch. Be sure burner is functional when on.

  • Check the fuses beneath the fuse panel.

  • Check the oil tank for oil.

  • Test the reset button.

  • Remove the oil nozzle and check the line pressure with the pressure gauge. The pressure should be 170 psi.

  • Test the thermostat by placing a jumper wire between the "T.T" labeled points. If the engine starts, it has a thermostat problem.

  • Test the computer-aided design (CAD) system by removing a wire from terminal "F." If the burner starts, the wiring harness needs to be replaced.

  • Check the system voltage. Place the voltage meter between the black lead and the ground wire on the main console; if no voltage registers, replace the main console, also known as the primary control. Check the limit terminal to the ground wire and check for broken wires if it has some reading; if it has no reading, replace the limit terminal. If the voltage meter has no readings, check the fuses again.

Tips & Warnings

  • Be careful of hot or moving parts.

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