Goodman Air Handler Error Codes

Updated October 13, 2026 · by Aurora Star Tech Inc.

20 Goodman Air Handler error codes and diagnostic codes, with causes and troubleshooting steps for each. Select a code, or find your model below.

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

Goodman Air Handler error codes list

Code	Meaning	Severity
E0F	Condensate switch open - high water in drain pan	Medium
E05	Air handler fuse open	High
Eb0	Blower motor not running with a demand present	High
Eb1	Control lost communication with the blower motor	High
Eb2	Motor horsepower does not match shared data	High
Eb3	Blower limiting on power, temperature or speed	Medium
Eb4	Blower motor lost rotor control or high current	High
Eb5	Blower motor failed to start 10 times	High
Eb6	Blower shut down for voltage or power module temperature	High
Eb7	Blower motor missing shared data / failed to start 40 times	High
Eb9	Airflow lower than demanded	Medium
EC1	Communication error with the outdoor unit	High
Ed0	No shared data on the network	High
Ed1	Invalid shared data	High
Ed4	Shared data rejected by the control	High
RDS 2 flashes	Control board internal fault (leak detection board)	High
RDS 3 flashes	R32 sensor communication fault	High
RDS 4 flashes	R32 sensor internal fault	High
RDS fast flash	R-32 leak alarm (or system verification test)	Critical
RDS steady on	Delay mode after leak alarm or fault	Medium

Find codes by Goodman model

Goodman/Amana R-32 AMST/AWSF/ACSF air handlers

ACSF****13**AA AMST***U1300AA AWSF****13**AA AWST****13**AA

Goodman/Amana ComfortBridge AVPTC/MBVC

AVPTC25B14 AVPTC29B14 AVPTC31C14 AVPTC31C14AD AVPTC33C14 AVPTC35B14 AVPTC37B14 AVPTC37C14 AVPTC37D14 AVPTC39C14 AVPTC49C14 AVPTC49D14 AVPTC59C14 AVPTC59D14 AVPTC61D14 AVPTC183014 AVPTC313714 AVPTC426014 MBVC1201 MBVC1601 MBVC2001

Air Handler troubleshooting guides

Blower not running - R-32 AMST/AWSF EEM air handler Goodman · Air Handler
No electric heat - R-32 air handler heat kit Goodman · Air Handler
Outdoor unit not communicating - ComfortBridge AVPTC/MBVC Goodman · Air Handler

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.