How to Do Lennox Furnace Repair

If you have a Lennox furnace that is not working properly, you will want to learn everything you possibly can about Lennox furnace repair.

Depending on the severity of the problem, you may be able to fix it yourself or you may have to call in a professional. First, you must find out exactly what is causing the Lennox furnace to malfunction before you can decide what to do about it.

If your furnace is just simply not working as it should, you may need a new air filter. When your air filter becomes dirty or clogged, it can cause the furnace to quit working properly.

Check your air filter by removing it from your furnace and looking to see if it is dirty. If it is, then replace it with a clean air filter and see how your furnace runs.

If after several minutes your furnace is running correctly, you will know that a dirty air filter was the problem.

If you are having problems with your furnace turning on properly, there might be a problem with your flame sensor. The flame sensor lets the furnace know that the pilot light is lit and that it is ready to turn on.

If the flame sensor is not working, the furnace will not switch on, even if the pilot light in engaged. If you think this may be the problem, you can try replacing it yourself or you can call a certified technician to do the job for you.

If you are having trouble diagnosing the problem with your furnace, there is an easy way to get help. Look on the front bottom panel of your Lennox furnace for a red LED light.

This light blinks a diagnostic code that can help you to determine what is wrong with your furnace. Watch the light to see how it is blinking.

For instance, the light might blink 2 short times and 1 long one. Once you have determined the pattern, you can simply look in your Lennox furnace manual to find out what the code means.

If you determine that the problem with your furnace is a faulty circuit board, it is advised that you hire a technician to replace it. This problem is not easily fixed by a novice and can cause quite a bit of damage if done incorrectly.

Originally posted 2010-07-31 12:54:26.

Lennox Furnace Troubleshooting Codes

Many furnaces nowadays have some kind of diagnostic system that allows owners to monitor and maintain the furnace in a limited way. The Lennox furnaces have this system.

If you have a Lennox furnace then it is strongly advised that familiarize yourself not only with the codes but the general running of the furnace to save you having to call in professionals for minor problems, thus accruing unnecessary expenses.

Lennox furnace troubleshooting codes are intended to make it easier for you to diagnose any problem you might have with your furnace. Though Lennox makes reliable furnaces, occasionally due to issues like prolonged use, you may find a problem.

The Lennox furnace error codes are a handy way of giving owners an opportunity to fix a minor glitch for themselves without resorting to costly call outs from repairmen. However, if you are unsure of the problem and how to fix it, or you don’t consider yourself very technical, it may be better to call someone in rather than risk making the problem worse.

In order to find the Lennox furnace troubleshooting codes you should look for the LED display. The codes themselves are not cryptic numbers or letters, instead they are patterns created by the flashing LED display.

It is a little like Morse code, the LED will flash in a particular sequence, three short flashes and one long, for example. This code should be noted down and then either looked up in the manual or more often, a list is recorded somewhere on the furnace itself, usually on the inside of the door.

The most likely problems that are diagnosed through LED codes are as follows:

  • Ignition failure – in which case the power needs to be turned off to reset it
  • Open pressure switch
  • Open limit switch

These problems are easily remedied with little technical know-how. However if the problem persists there is an underlying reason for the fault that has not been addressed. Parts do not usually go wrong without a good reason.

If you are at all worried about how your furnace is functioning, then calling in a professional will give you peace of mind.

Originally posted 2011-05-17 06:07:38.

Do It Yourself Lennox Furnace Maintenance

If you own a Lennox furnace or are thinking about purchasing one, you will need to know a little bit about Lennox furnace maintenance. Maintaining a Lennox furnace is not that different from taking care of other furnaces, but there are a few things that you need to know in order to keep your furnace running properly.

Check your user guide to find out how many times per year you should change out the furnace air filter. For some furnaces, the guide only says once or twice per year. However, you should also check the package on the air filters that you buy to see how long they last.

Go with the shortest date. For instance, if your Lennox guide says to change your filter once every 6 months and the package on your filter says to change it out every 3 months, go with the 3 month time period. This will ensure that you always have a clean air filter.

Perform a manual inspection of your heating system on a yearly basis. Take a look at your furnace unit and all the wires going to and from it to make sure that they are not frayed. If you feel uncomfortable doing this kind of analysis, you can always hire someone to come over and check out the system for you.

Check the area around your outdoor unit to make sure that there is no excess growth of shrubs or grass. If grass or other debris is blocking your outdoor unit, it may not be running properly.

Take some time and trim the grass and the hedges around the unit. You should also make sure that there is enough space around the unit so that if maintenance needs to be done, a technician can get to the unit.

Aside from these things, you should also clean your indoor furnace once every three months to make sure that it does not have an excess of dust or dirt on it. Dust build up on the unit can cause problems and make the unit work poorly.

Keep these things in mind when you are thinking of Lennox furnace maintenance. You can keep your furnace clean and running well with just a little time and extra care.

Originally posted 2010-07-13 07:37:04.

Lennox Furnace LED Codes

With almost any furnace you choose to purchase, you are likely to make some repairs during the course of ownership. This is the case, also, with Lennox furnaces.

You might feel like you are unable to make any sort of repairs on your own, which is fine. In this case, you can simply call a repair person.

However, you may have a little experience with electronics and wish to try to fix the problem yourself. If this is the situation, then you will have a little help from the Lennox furnace LED codes.

In each Lennox furnace, there is a red blinking light. You will find the light on the lower, front panel of the furnace.

This is a diagnostic light that can help you to determine what the problem is with your furnace. If your furnace is not working properly, you can check out the light and watch it to see the pattern.

The red LED light will blink in a sequence when something is wrong with the furnace. For instance, you might observe 3 fast blinks and one slow one.

This would be a code that can tell you what is wrong with your furnace. When you have watched the light for a few moments and you have noted the code, go ahead and write it down on a sheet of paper. This will help you to remember what you have seen.

Now that you have the code, you can find out the nature of the problem. Simply open your furnace door and look for a sheet of paper that has the diagnostic codes written on them.

It should be taped to the inside of the furnace door. If there is no paper there, then you will need to locate your Lennox furnace manual so that you can check out the code and what it means.

Once you have determined what the problem is, you can decide whether or not you want to attempt the repair yourself.

If you do, then you might need to call your local Lennox dealer to get any replacement parts that you might need. If you decide to call a repair person, they should be able to handle getting the replacement parts for you.

Originally posted 2010-08-03 06:58:42.

Lennox Furnace Problems

Do you own a Lennox furnace? Are you having some Lennox furnace problems? That’s the reason why you are reading this page, right? You are having some problems with your furnace. And you want to find out how to deal with it.

Lennox Furnace products have been around for quite some time now. The manufacturer is a subsidiary of the Lennox International Inc. based in Orange, California.

There have been reports of Lennox furnace problems occurring. People are experiencing some trouble with their Lennox furnaces. One issue that users have been experiencing with Lennox furnaces is it doesn’t always turn on.

There have been several reports of their Lennox furnace not turning on. Some people had to set the thermostat to a higher level before the furnace actually comes to life.

People who have Lennox furnaces attest to having to spend about two to three hundred dollars a year just for repairs. One testimonial reads that he had to have the “brain” of the furnace replaced twice.

One said that after a year, it started to conk out on him. This is truly substandard performance of the Lennox furnaces.

People also are reporting Lennox furnace problems that require a lot of part replacements. They say that they have to spend about a hundred dollars on average. And this is just for parts of the furnace.

Not all people are willing to spend that much for a furnace that regularly breaks down. Even if you call 1-800-9-LENNOX, they wouldn’t be able to help you out. Even HVAC repair centers have difficulty with the repair of Lennox furnaces.

On this note, Lennox clearly shows that there is a lot more room for improvement of the product. It is important for consumers to get the quality that they have paid for. And with what consumers experience with Lennox furnaces, it is a total let down.

It does kind of get annoying when you have to reset your furnace every now and then just to keep you warm. And since the winter season is drawing near, you won’t need a furnace that doesn’t work.

Originally posted 2009-10-07 07:21:56.