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Carrier furnace code 32

How to Fix Carrier Furnace Code 32

Looking for tips on how to fix Carrier furnace code 32? Imagine this… It’s a cold winter night and you’re looking forward to a cozy evening at home. You turn…

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Looking for tips on how to fix Carrier furnace code 32?

Imagine this…

It’s a cold winter night and you’re looking forward to a cozy evening at home. You turn on your Carrier furnace and expect it to warm up your house in no time. 

But instead of feeling the heat, you hear a loud noise and see a flashing light on your furnace control board. You check the code and it says “32”. What does that mean? And more importantly, how do you fix it?

Carrier furnace code 32 is a fault code that indicates a problem with the low-pressure switch of your furnace. The low-pressure switch is a safety device that monitors the air pressure in the combustion chamber and prevents the furnace from operating if the pressure is too low or too high. 

If the low-pressure switch fails or malfunctions, it can cause your furnace to shut down, overheat, or even explode.

In this blog post, we will show you how to diagnose and fix Carrier furnace code 32 in three easy steps. We will also share some tips on how to prevent this problem from happening again and how to maintain your furnace in optimal condition.

Step 1: Check the power supply and the venting system

The first thing you need to do when fixing Carrier furnace code 32 is to make sure that your furnace has enough power and that the venting system is not blocked or damaged.

To do this, follow these steps:

  • Turn off the power to your furnace and wait for a few minutes.
  • Check the circuit breaker or fuse box and make sure that there is no power outage or blown fuse.
  • Check the venting system and make sure that there is no obstruction, debris, or damage that could restrict the airflow or cause backdrafts.
  • Turn on the power to your furnace and observe if code 32 persists or disappears.
  • If the code 32 disappears after checking the power supply and the venting system, then you have solved the problem and you can enjoy your warm home.
  • If that Carrier furnace code 32 persists after checking the power supply and the venting system, then you need to move on to the next step and check the low-pressure switch itself.
  • Be careful when working with electricity and gas. Always turn off the power and gas supply before opening or inspecting your furnace. If you are not comfortable or confident with troubleshooting Carrier furnace code 32 yourself, call a professional technician for help.

READ: The Complete Guide to Carrier Furnace Parts: Everything You Need to Know

Step 2: Check the Low-Pressure Switch

The next thing you need to do while troubleshooting Carrier furnace code 32 is to check if the low-pressure switch of your furnace is working properly or not. The low-pressure switch is usually located near the inducer motor or blower motor of your furnace.

These Tips Will Help Solve This Step

  • Turn off the power and gas supply to your furnace and wait for a few minutes.
  • Locate the low-pressure switch and disconnect its wires from the control board.
  • Use a multimeter to test the continuity of the switch. Set the multimeter to ohms and touch its probes to the terminals of the switch.
  • If the multimeter shows zero or very low resistance, then the switch is closed and working properly.
  • If the multimeter shows infinite or very high resistance, then the switch is open and faulty.
  • If the switch is faulty, replace it with a new one that matches your furnace model and specifications.
  • If you don’t have a multimeter, you can use a jumper wire to bypass the switch temporarily and see if that clears the Carrier furnace code 32. However, this is not recommended as it can be dangerous and damage your furnace further.
  • If you replace the low-pressure switch with a new one and still get code 32, then there might be another problem with your furnace that requires professional attention.
  • Make sure to reconnect the wires correctly and securely after testing or replacing the switch. Do not leave any loose or exposed wires that could cause a short circuit or a fire.

READ: The Ultimate Guide to Hassle-Free Carrier Air Conditioner Troubleshooting

Step 3: Check the Pressure Tubing And the Inducer Motor

The last thing in Carrier furnace code 32 troubleshooting is to check if the pressure tubing and the inducer motor of your furnace are clogged or damaged and causing the low-pressure switch to malfunction.

The pressure tubing is a small rubber hose that connects the low-pressure switch to the inducer motor. The inducer motor is a small fan that draws air into the combustion chamber and creates a negative pressure.

To do this, follow these steps to fix Carrier furnace code 32:

  • Turn off the power and gas supply to your furnace and wait for a few minutes.
  • Locate the pressure tubing and the inducer motor and disconnect them from the low-pressure switch and the furnace.
  • Inspect the pressure tubing and the inducer motor for any signs of clogging, cracking, leaking, or corrosion.
  • Use a small brush or a vacuum cleaner to remove any dust, dirt, or debris from the pressure tubing and the inducer motor.
  • If the pressure tubing or the inducer motor is damaged, replace it with a new one that matches your furnace model and specifications.
  • If you clean or replace the pressure tubing or the inducer motor and still get code 32, then there might be another problem with your furnace that requires professional attention.
  • Make sure to reconnect the pressure tubing and the inducer motor correctly and securely after cleaning or replacing them. Do not leave any loose or kinked hoses that could cause a leak or a blockage.

READ: How to Troubleshoot and Maintain Your Carrier WeatherMaker 9200 Furnace

Conclusion

In this blog post, we have shown you how to fix Carrier furnace code 32 in three easy steps. By following these steps, you can ensure that your furnace is safe, efficient, and reliable. You can also save money on energy bills, repair costs, and potential damages. You can also enjoy a comfortable and cozy home without worrying about your furnace breaking down.

We hope you found this blog post useful and informative. If you have any questions or comments about Carrier furnace code 32 or anything related to heating and cooling systems, please get them here. We would love to hear from you. And don’t forget to share this blog post with your friends and family who might benefit from it.

I'm an HVAC enthusiast and a passionate writer dedicated to sharing valuable insights and practical tips about heating, cooling, ventilation, and air conditioning systems.

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Hi there, I'm Robert Brooks

Hi there, I'm Robert Brooks

I’m so glad you are here! Welcome to my website, where I’ll share easiest HVAC troubleshooting tips, buyers guides, and everything about HVAC cooling and heating system. Learn more about me.

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