What It Means
Pressure switch failed to open prior to startup.
Bryant Furnace
Bryant Furnace Error Code 23
Troubleshooting guide for the Bryant Furnace system fault 23.
Possible Causes
- Pressure switch contacts stuck closed.
- Obstructed, kinked, or water-filled pressure tubing.
- Improper inducer motor operation or restricted venting.
Not sure which one it is — or if it's none of these? Try ACLogics today.
Disclaimer: This information is for general reference. Error codes can vary by model and production year. Always refer to your machine's specific manual and the information printed on the unit itself.
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Full Diagnosis
Pressure Switch Did Not Open. Check for obstructed pressure tubing or pressure switch stuck closed.
All Recorded Causes
Inspect pressure switch tubing for blockage, kinks, or water. Test pressure switch opens at rated pressure. Verify inducer motor operation. Check for proper venting and condensate drainage.
Verify Before Replacing Parts
- Confirm the exact Bryant model family and furnaces context before acting on a generic code description.
- Walk the entire heating sequence in order instead of jumping straight to the reported code, watching for inspect pressure switch tubing for blockage, kinks, or water.
- Verify each safety device and prove where the sequence stops under live operation, including whether test pressure switch opens at rated pressure.
- After the correction, run the system long enough to confirm the furnaces fault does not return under normal load.
Still unsure about this fault?
ACLogics walks you through Bryant Furnace diagnostics step-by-step — so you confirm the cause before swapping parts.
