how to fix bryant furnace error code 33?

If you own a Bryant furnace and are encountering the error code 33, you may be wondering what it means and how to resolve it. Error code 33 on a Bryant furnace signifies a Limit Circuit Fault, indicating that the high limit or flame rollout switch is open. This issue can lead to error code 13, which is a Limit Circuit Lockout.

The error code 33 often occurs during temperature resets, such as when the furnace transitions from a lower temperature to a higher temperature. For example, if you increase the temperature from 66 to 68 degrees in the morning, you may encounter the code for approximately 30-45 minutes. The error code then disappears for the rest of the day, only to reappear the following morning.

This problem has been reported by several users and appears to be a common issue with Bryant furnaces. To diagnose and fix the error code 33, it is recommended to reach out to a Bryant dealer or a skilled technician who can provide an accurate diagnosis and repair.

Key Takeaways:

• Error code 33 on a Bryant furnace indicates a Limit Circuit Fault.
• This issue is commonly experienced during temperature resets.
• Contacting a Bryant dealer or technician is recommended for diagnosis and repair.

Troubleshooting Tips for Bryant Furnace Error Code 33

If you are experiencing error code 33 on your Bryant furnace, there are several troubleshooting steps you can take:

1. First, check for proper switch operation by ensuring that the high limit switch is not open and that the flame rollout switch is not tripped. Reset the flame rollout switch(es) if necessary.
2. Next, check for air flow issues by inspecting the filter, vents, and ducts. Make sure they are clean and not obstructed.
3. Also, check the condition of the blower wheel and motor to ensure they are functioning properly.
4. Additionally, check for proper combustion air and increase the speed of the blower motor if needed.

If these troubleshooting steps do not resolve the issue, it is recommended to seek assistance from a qualified technician.

Possible Causes and Solutions for Bryant Furnace Error Code 33

When encountering error code 33 on your Bryant furnace, there are a few potential causes that you can investigate. One common issue is restricted air flow, often due to using a filter with a higher MERV rating. This restricts the air flow over the furnace’s heat exchanger, leading to the error code. To resolve this, consider switching to a lower MERV-rated filter or removing any obstructions that may hinder air flow.

Another possible cause for error code 33 is a malfunctioning high limit or flame rollout switch. These switches play a crucial role in ensuring safe furnace operation. If they are not functioning correctly, they may need to be replaced. Additionally, it’s important to inspect the heat exchanger for any cracks or holes as they can cause overheating, triggering the error code.

If you have exhausted troubleshooting efforts and are unable to resolve the issue, it is advisable to seek the assistance of a professional HVAC technician. They have the expertise needed to accurately diagnose the problem and provide effective solutions for your Bryant furnace error code 33.