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Carrier furnace led codes 1 short 4 long

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Carrier furnace led codes 1 short 4 long

SECTION 1: Introduction

If you own a Carrier furnace, chances are you’ve seen the red LED light flashing on the front. This is the diagnostic indicator that tells you that there’s something wrong with your furnace. The issue could be anything from a simple maintenance issue to a more serious problem. Sometimes, the LED will blink a code that indicates the problem. One of the most common codes is the 1 short 4 long code. This article will explain what this code means, how to troubleshoot it, and how to fix the problem.

SECTION 2: What is a Carrier Furnace LED Code?

A Carrier furnace LED code indicates a problem with your furnace. The LED will blink a code that indicates the nature of the problem. The code is made up of a series of short and long blinks. Each short or long blink is a number. For example, a 1 short 4 long code means that the furnace is experiencing a problem with the primary limit switch. This switch is responsible for turning the furnace off if it gets too hot.

SECTION 3: What Does a 1 Short & 4 Long LED Code Mean?

The 1 short 4 long LED code indicates that the furnace’s primary limit switch has failed. This switch is responsible for turning the furnace off when it gets too hot. When the switch fails, the furnace will continue to run, but it won’t be able to reach the desired temperature. This can lead to various problems, including poor air quality, higher energy costs, and potential fire hazards.

SECTION 4: How to Troubleshoot the Problem

When you see the 1 short 4 long LED code on your Carrier furnace, the first step is to troubleshoot the problem. You can do this by performing a few simple tests. The first test is to check the furnace’s filter. If the filter is clogged, the airflow is restricted, which can cause the furnace to overheat. If this is the case, replace the filter and check the LED code again.

The second test you can do is to check the furnace’s blower motor. If the motor is failing, it might not be able to move enough air to cool the furnace. This can lead to overheating and the 1 short 4 long LED code. To check the motor, you can use a multimeter to measure the voltage. If the voltage is too low, it’s a sign that the motor is failing and needs to be replaced.

SECTION 5: Common Causes of a 1 Short & 4 Long LED Code

In addition to the two tests mentioned above, there are a few other common causes of a 1-short & 4-long LED code. These include a faulty limit switch, a dirty flame sensor, or a faulty fan control board. These can cause the furnace to overheat and trigger the 1 short 4 long LED code.

The limit switch is responsible for turning the furnace off when it gets too hot. If the switch is faulty, it won’t be able to do its job, and the furnace will overheat. The flame sensor is responsible for detecting the presence of a flame in the furnace. If it’s dirty or clogged, it won’t be able to detect the flame, and the furnace will overheat. Finally, the fan control board is responsible for controlling the speed of the blower motor. If it’s faulty, it won’t be able to control the motor, and the furnace will overheat.

SECTION 6: How to Fix the Problem

For a faulty limit switch, you’ll need to replace it. This is a fairly simple process and can usually be done without the help of a professional. For a dirty flame sensor or faulty fan control board, you’ll need to have them replaced by a professional.

SECTION 8: Conclusion

If your Carrier furnace is displaying the 1 short 4 long LED code, don’t panic. The code usually indicates a simple problem that can be fixed without the help of a professional. To troubleshoot the problem, check the filter, blower motor, limit switch, flame sensor, and fan control board. Once you’ve identified the cause of the problem, you can fix it yourself or have a professional do it for you. Remember to perform regular maintenance on your furnace to help prevent the 1 short 4 long LED code from appearing.

 

“Inspections, Installations, Repairs & Maintenance”