What It Means
Personality module (PM) memory data missing or corrupted.
Trane AC & Heat Pump
Trane AC & Heat Pump Error Code Red 14 Flashes
Troubleshooting guide for the Trane AC & Heat Pump system fault Red 14 Flashes.
ACLogics Fix Trane code Red 14 Flashes See how ACLogics handles it → Fix Red 14 Flashes step-by-step
Possible Causes
- Loose or improperly seated memory module.
- Corrupt memory module data.
- Defective memory module or control board.
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
Memory module (PM) error – data missing or corrupt.
All Recorded Causes
Ensure the plug-in memory module is firmly inserted (power off first). If the fault remains, the module or control board may need replacement or reprogramming.
Verify Before Replacing Parts
- Confirm the exact Trane model family and ac and heat pump context before acting on a generic code description.
- Start with line voltage, low voltage, and board output checks in sequence so the fault is isolated cleanly — the data plate flags ensure the plug-in memory module is firmly inserted (power off first).
- Inspect connectors, relay outputs, and any recently replaced electrical parts for mismatch or loose fit, and verify if the fault remains, the module or control board may need replacement or reprogramming.
- After the correction, run the system long enough to confirm the ac and heat pump fault does not return under normal load.
Not sure which system this Trane code is on?
ACLogics has guided diagnostics for 36 Trane fault codes and asks the right questions to narrow it down.
