Goodman Air Conditioner Error Code On

The "On" indicator on a Goodman air conditioner control means the system is configured to receive signals from a wired thermostat. This is a configuration status, not a fault or error code. It simply tells you how the control board is set up to communicate with your thermostat.

No, the "On" indicator is not a safety issue. It is purely a configuration status that tells the technician or homeowner how the control board is set up. There is no fault condition, electrical hazard, or mechanical issue associated with this indicator.

In most cases, there is no cost involved because the "On" status simply confirms correct configuration for a wired thermostat. If a technician visit is needed to adjust configuration settings or verify wiring, typical HVAC diagnostic service call fees range from around 75 to 150 dollars depending on your region and the service provider.

If you have a standard wired thermostat connected to your Goodman unit, no action is needed. The "On" status confirms the correct configuration is in place. If you are using a different type of thermostat or control method, you will need to consult the Configuration Settings for the unit to change the input mode.

Resetting the control board will not necessarily remove the "On" status, and it may not be desirable to do so. If the board resets to its default configuration, the wired thermostat setting may remain or be restored. The only way to change this status is through the Configuration Settings on the control board.