How To Replace Igniter On Lennox Furnace

How To

“Ignite Your Furnace with Lennox: Get the Heat You Need!”

Replacing the igniter on a Lennox furnace is a relatively simple task that can be completed in a few steps. This guide will provide you with the necessary information to replace the igniter on your Lennox furnace. It is important to note that this guide is intended for informational purposes only and should not be used as a substitute for professional advice or services. Additionally, it is important to ensure that all safety precautions are taken when working with any type of furnace. With that said, let’s get started!

Step-by-Step Guide to Replacing an Igniter on a Lennox Furnace

1. Turn off the power to the furnace. This can be done by either turning off the circuit breaker or removing the fuse from the furnace.

2. Locate the igniter. It is usually located near the burner assembly.

3. Disconnect the wires from the old igniter. Make sure to note which wire goes to which terminal.

4. Remove the mounting screws that hold the igniter in place.

5. Install the new igniter in the same position as the old one.

6. Connect the wires to the new igniter. Make sure to connect the wires to the same terminals as before.

7. Secure the igniter in place with the mounting screws.

8. Turn the power back on to the furnace.

9. Test the furnace to make sure the igniter is working properly.

What to Look for When Shopping for a Replacement Igniter for a Lennox Furnace

When shopping for a replacement igniter for a Lennox furnace, it is important to consider several factors. First, it is important to ensure that the igniter is compatible with the specific model of Lennox furnace. This can be determined by checking the model number of the furnace and comparing it to the list of compatible models provided by the manufacturer.

Second, it is important to ensure that the igniter is of high quality. This can be determined by researching the manufacturer and reading customer reviews. It is also important to ensure that the igniter is certified by the relevant safety standards.

Third, it is important to consider the cost of the igniter. It is important to compare prices from different suppliers to ensure that the best deal is obtained.

Finally, it is important to consider the warranty offered by the manufacturer. This will provide peace of mind that the igniter will be replaced if it fails within the warranty period.

By considering these factors, it is possible to find a suitable replacement igniter for a Lennox furnace.

How to Troubleshoot a Lennox Furnace Igniter Before Replacing It

If your Lennox furnace is not igniting, it may be due to a faulty igniter. Before replacing the igniter, it is important to troubleshoot the issue to ensure that the igniter is the cause of the problem. This guide will provide step-by-step instructions on how to troubleshoot a Lennox furnace igniter before replacing it.

Step 1: Check the Igniter

The first step is to check the igniter for any visible signs of damage. If the igniter is cracked or broken, it will need to be replaced. If the igniter appears to be in good condition, proceed to the next step.

Step 2: Check the Wiring

Next, check the wiring for any signs of damage or loose connections. If the wiring is damaged or loose, it will need to be repaired or replaced. If the wiring appears to be in good condition, proceed to the next step.

Step 3: Check the Gas Valve

The gas valve is responsible for supplying the gas to the furnace. Check the gas valve to ensure that it is open and that there is no blockage. If the gas valve is closed or blocked, it will need to be opened or cleared before proceeding.

Step 4: Check the Thermocouple

The thermocouple is responsible for sensing the temperature of the furnace. Check the thermocouple to ensure that it is in good condition and that it is properly connected. If the thermocouple is damaged or disconnected, it will need to be replaced.

Step 5: Check the Ignition Control Module

The ignition control module is responsible for controlling the ignition process. Check the ignition control module to ensure that it is in good condition and that it is properly connected. If the ignition control module is damaged or disconnected, it will need to be replaced.

Once all of these steps have been completed, the igniter should be ready to be tested. If the igniter still does not ignite, it will need to be replaced.

Safety Tips for Replacing an Igniter on a Lennox Furnace

1. Turn off the power to the furnace before beginning any work. This can be done by switching off the circuit breaker or removing the fuse from the fuse box.

2. Wear protective gear such as safety glasses, gloves, and a dust mask when working on the furnace.

3. Make sure the furnace is cool before beginning any work.

4. Disconnect the wires from the old igniter and remove it from the furnace.

5. Install the new igniter according to the manufacturer’s instructions.

6. Reconnect the wires to the new igniter and secure them with wire nuts.

7. Test the new igniter to make sure it is working properly.

8. Replace the furnace cover and turn the power back on.

9. Check the furnace for proper operation.

10. If you are unsure of any of the steps, contact a qualified technician for assistance.

Common Problems with Igniters on Lennox Furnaces and How to Fix Them

Igniters on Lennox furnaces are an important component of the heating system, as they are responsible for igniting the fuel that heats the home. Unfortunately, these igniters can sometimes malfunction, leading to a variety of problems. Here are some of the most common issues with Lennox furnace igniters and how to fix them.

The first issue is a dirty or clogged igniter. This can be caused by dirt, dust, or other debris that has built up on the igniter over time. To fix this, you should first turn off the power to the furnace and then use a vacuum cleaner to remove any dirt or debris from the igniter. If the problem persists, you may need to replace the igniter.

Another common issue is a cracked or broken igniter. This can be caused by age or wear and tear, and it can prevent the igniter from working properly. To fix this, you should replace the igniter with a new one.

Finally, a faulty igniter can also be caused by a faulty control board. If the control board is not working properly, it can prevent the igniter from igniting the fuel. To fix this, you should replace the control board with a new one.

In conclusion, Lennox furnace igniters can sometimes malfunction, leading to a variety of problems. The most common issues are a dirty or clogged igniter, a cracked or broken igniter, and a faulty control board. To fix these issues, you should clean the igniter, replace the igniter, or replace the control board.

Conclusion

Replacing the igniter on a Lennox furnace is a relatively simple process that can be completed in a few steps. With the right tools and a little bit of patience, you can easily replace the igniter on your Lennox furnace and get your furnace running again. It is important to remember to always follow the manufacturer’s instructions when replacing any part of your furnace.