Goodman Furnace: Integrated control module diagnostic LED
Integrated control module diagnostic LED on a Goodman furnace: If the control detects a possible safety concern, it stops the appropriate operation and shows diagnostic information on the LED. Use the error code (letter and number) with the troubleshooting chart at the back of the manual.
Applies to: All 34.5in chassis gas furnaces
How to fix integrated control module diagnostic led: step by step
- Read the error code on the 7-segment LED.
- Look up the code in the troubleshooting chart.
If the unit shows an error code, look it up: Goodman Furnace codes
Source: Goodman GMVC96 service and troubleshooting manual, p. 37. 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.