Troubleshooting – Beckett SDC 12V User Manual
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12Vdc SDC Burner Manual
Troubleshooting
Oil burners that are designed for use in pressure washers 
are built to take temperature extremes, vibration, and rough 
handling. When performing the following troubleshooting 
steps, we assume that the oil burner motor and ignition 
transformer operate continuously and the oil solenoid 
valve, which controls oil fl ow, is cycled by the trigger in the 
wand. We also assume that there is power to the burner 
and fuel in the tank. 
In addition to normal mechanics tools, it is recommended 
to have the following equipment on hand.
Meter capable of measuring volts, ohms and amps,
ignition transformer tester,
smoke pump tester,
combustion analyzer, and
0 to 200 psi pressure gauge.
See Table 3 on following page for troubleshooting steps.
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Section: Troubleshooting
Table 2. Nozzle Flow Rate by Size
Nozzle fl ow rate U. S. gallons per hour of No. 2 fuel 
oil when pump pressure (psig) is:
Nozzle size
(rated at 100
psig)
100
psi
140
psi
1.75
1.75
2.07
2.00
2.00
2.37
2.25
2.25
2.66
2.50
2.50
2.96
2.75
2.75
3.24
3.00
3.00
3.55
3.50
3.50
4.13
4.00
4.00
4.70
4.50
4.50
5.30
5.00
5.00
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