How do I fix the Payne furnace code 33?

Alton Alexander
By Alton AlexanderUpdated on June 4th, 2022

The Payne Furnace Code 33 is an error code that indicates that the furnace is not able to generate enough heat. This can be caused by a number of different things, such as a problem with the gas supply, a blockage in the flue, or a problem with the burner.

Other common searches for this error include:

  • payne furnace error code 33
  • payne furnace code 33

1. Replace the furnace filter

  1. Turn off the power to the furnace
  2. Open the front cover of the furnace
  3. Locate the filter housing and remove the old filter
  4. Inspect the filter for damage and replace it if necessary
  5. Replace the front cover of the furnace

2. Check for debris or blockages in the flue pipe

  1. Look for obvious obstructions in the flue pipe. This could include chunks of insulation, pieces of paper, or rocks.
  2. If you see any debris or blockages, use a vacuum cleaner to clear them out. Be sure to wear protective gear, including a mask and gloves.
  3. Once the obstruction is cleared, insert a flexible tube into the flue pipe and turn on the vacuum cleaner. The suction will pull any remaining debris or blockages out of the pipe.
  4. If the problem is still not resolved, you may need to replace the flue pipe.

3. Inspect the combustion chamber for cracks or damage

  1. Inspect the air intake and exhaust systems to ensure proper operation.
  2. Inspect the flue and chimney system for proper installation and operation.
  3. Inspect the combustion chamber for cracks or damage.
  4. Replace any damaged or cracked components.

4. Clean the burners and adjust the gas pressure

There are many steps to cleaning the burners and adjusting the gas pressure in order to fix payne furnace code 33. This will vary depending on the model of the payne furnace, but generally, the steps to take include:

  1. Open the payne furnace.
  2. Remove the burners by unscrewing them.
  3. Clean the burners with a disinfectant.
  4. Reinstall the burners.
  5. Adjust the gas pressure to the proper setting.

5. Replace the igniter

  1. Open the door to the furnace and remove the igniter assembly by unscrewing the four screws that hold it in place.
  2. Inspect the igniter for broken or damaged parts. If there are any problems, replace the igniter with a new one.
  3. Reinstall the igniter assembly by screwing it back in place.
  4. Replace the screws that hold the assembly to the furnace door.
  5. Close the door to the furnace and test the igniter by turning it on. If the igniter works, replace the circuit board that controls it and the door switch.

6. Check for proper venting

There are a few different ways you can check for proper venting in order to fix payne furnace code 33. One way is to check to see if the furnace is venting properly. This can be done by checking the chimney if it is open, looking for a smoke or heat escape, or checking the duct work. If the furnace is venting properly, then the payne furnace code 33 may not be a problem. However, if the furnace is not venting properly, then the payne furnace code 33 may still be a problem and may need to be fixed.

If the answers above didn't work then you should also try:

  1. Have a professional inspect and service the furnace.