This one shows how to test the transformer spark on the gun oil burner.
Oil furnace transformer test.
The video below can help you if you need it.
With 120 volts input to the transformer the output should be approximately 10 000 volts.
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Furnaces of all types such as electric gas and oil furnaces will use transformers with 120 or 240 volts.
Furnace transformer troubleshoot sequence if there is no voltage read at the output of the transformer as read by a voltmeter and power is available on the input side the transformer has failed.
November 11 2013 an oil furnace works by having a high voltage ignitor create a spark next to an oil nozzle.
The transformer steps up your 120 volt house voltage to several thousand volts to produce a spark across the terminals of an igniter.
The nozzle compresses air and oil transporting it to the spark where it is ignited to create heat.
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A perhaps less common problem is ignition transformer failure.
Although your oil furnace burns fossil fuel it still needs electricity to light the flame.
The ignition transformer takes 120 volts ac and transforms it into 10 000 volts ac to ignite the oil droplets.
This video is part of.
Finally test the newly installed transformer with a voltage tester.
Oil furnace ignitor troubleshooting posted on.
I did one earlier but it was not installed on the oil burner.
Some options may also use as little as 24 volts.
A 24 volt transformer is typically used as a control device to turn a higher voltage generally 120 vac into a lower working voltage for switches or relays such as in a furnace thermostat transformer.
The transformer converts electric voltage to create the impetus for the igniter to spark.
Heating service technicians use a special high voltage tester to check the transformer.
There are a number of ways to test the output voltage of the transformer.
The most accurate is to use a voltmeter capable of measuring 10 000 volts.
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As with igniters the transformer can be damaged by moisture and leaked oil.
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