Replacing Fuel Nozzle In Mobile Home Furnace: Step-By-Step Guide

Changing the fuel nozzle in a mobile home furnace is a relatively simple task that can be completed in a few steps. Here is a step-by-step guide on how to change the fuel nozzle in a mobile home furnace:

1. Turn off the furnace: Locate the switch of the heater and turn it off. There should be a button that changes colour to red when the furnace is turned off.

2. Shut off the oil flow: Locate the regulator button or valve that controls the flow of oil to the burner. Turn it clockwise to shut off the oil flow.

3. Prepare the tools and parts: Gather the necessary tools, such as a screwdriver, wrench, pump pliers, and a new fuel nozzle. Place the nuts and bolts on a plate to avoid losing them.

4. Remove the filter and transformer: Place the filter in a shallow pan to catch any dirt or residue. Use a screwdriver or wrench to remove the screws from the transformer and place them on a plate.

5. Loosen the oil line: Turn the transformer on its hinge and use a wrench or screwdriver to loosen the upper bolt of the pump oil line. Repeat this step for the next bolt, then gently rotate the oil line out of its original position.

6. Remove the old nozzle: Once the screws and nuts are removed, use pump pliers to loosen the hold-down nut that secures the nozzle. You may need to use your hands or wear rubber gloves for this step. Clean any residue from the nozzle with an old cloth. Finally, use two wrenches simultaneously to remove the nozzle by pulling them towards each other to loosen it.

7. Install the new nozzle: Insert the new nozzle and tighten it by pushing the bolt and nozzle towards each other with both wrenches. Rotate the nozzle in the chamber and re-insert the fuel tube.

8. Secure the new nozzle: Bolt the chamber using pump pliers and replace the hold-down bolt. Turn the transformer back to its original position and replace the hold-down screws, tightening them with a screwdriver or wrench.

Turn off the furnace

Turning off the furnace is the first step in changing the fuel nozzle in a mobile home furnace. Here is a detailed, direct, and instructive guide on how to turn off the furnace:

Locate the heater's off switch and turn it off. The switch button's colour will change to red when the off button is activated.

Next, locate the regulator button that shuts off the flow of oil from the oil tank to the burner. This button always shuts in a clockwise direction.

Place all nuts and bolts on a plate to ensure they are not lost.

Use a screwdriver to remove screws from the transformer

To remove the screws from the transformer, you will need a flat screwdriver or wrench. Place an old plate underneath the transformer to catch the screws as you remove them. The transformer is held in place by a piano hinge, which will support its weight while you work. Loosen the upper bolt of the pump oil line with a wrench or screwdriver, then repeat this step for the next bolt. Use your fingers to gently rotate the oil line out of its original position.

Loosen the upper bolt of the pump oil line

To loosen the upper bolt of the pump oil line, you will need a flat screwdriver or wrench. Loosen the bolt with the screwdriver or wrench and then unscrew it. Repeat the process for the next bolt. Use your fingers to gently rotate the oil line out of its original position.

It is important to place all nuts and bolts on a plate so that you do not lose them.

Remove the nozzle

To remove the nozzle, follow the steps below:

• Turn off the furnace switch. The button will turn red when it is off.
• Shut off the oil flow from the oil tank by turning the regulator button clockwise.
• Place all nuts and bolts on a plate to prevent losing them.
• Put the filter in the burner down on a shallow pan. The shutting nozzle will pull out all the dust and dirt.
• Use a flat screwdriver or wrench to remove the screws from the transformer and place them on an old plate.
• Turn the transformer on its hinge using the piano hinge.
• Loosen the upper bolt of the pump oil line with a wrench or screwdriver and unscrew it. Repeat this step for the next bolt.
• Gently rotate the oil line out of its original position with your fingers.
• Once the screws and nuts are removed, the nozzle can be removed.
• Loosen the hold-down nut that holds the nozzle with pump pliers. You may need to use your hands for this step.
• Wear rubber gloves and use an old piece of cloth to remove any residue on the nozzle.
• Finally, to remove the nozzle, use two wrenches at the same time. The smaller wrench would be used on the back bolt, while the bigger wrench would be used on the nozzle itself. Pull the wrenches towards each other to loosen the nozzle.

Replace the nozzle

Now that you have removed the old nozzle, it is time to replace it with a new one.

Firstly, you will need to insert the new nozzle into the chamber and rotate it. Next, re-insert the fuel tube.

Now, use pump pliers to bolt the chamber by replacing the hold-down bolt.

Finally, turn the transformer and replace the hold-down screws. Tighten the nuts using a flat screwdriver or wrench.

Frequently asked questions