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Goodman Air Handler: Restart indoor-outdoor communication (Lrn)

Updated · by Aurora Star Tech Inc.

Restart indoor-outdoor communication (Lrn) on a Goodman air handler: The Lrn menu action restarts communication between the indoor and outdoor units.

Homeowner with a air handler problem? Call (647) 657-2977 or book a service call — licensed technicians across Vaughan and the GTA.

Applies to: AVPTC / MBVC ComfortBridge air handlers

How to fix restart indoor-outdoor communication (lrn): step by step

  1. Scroll to Lrn with the Left or Right button
  2. Press the Center button to select it
Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.

If the unit shows an error code, look it up: Goodman Air Handler codes

Models

AVPTC25B14AVPTC29B14AVPTC31C14AVPTC31C14ADAVPTC33C14AVPTC35B14AVPTC37B14AVPTC37C14AVPTC37D14AVPTC39C14AVPTC49C14AVPTC49D14AVPTC59C14AVPTC59D14AVPTC61D14AVPTC183014AVPTC313714AVPTC426014MBVC1201MBVC1601MBVC2001

Source: Goodman ComfortNet ASXC-DSXC-GSXC / ASZC-DSZC-GSZC / AVPTC-MBVC service, Air Handler Display (B*) menu table pp.61-62 and Menu Navigation p.64. Written in our own words as a summary; always check the original manual.

General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.

© 2026 Aurora Star Tech Inc. All rights reserved. This page may not be copied, republished or used to train other systems without written permission.

Air Handler Emergency

647-657-2977