Goodman Furnace: Junction box relocation and wiring rules
Junction box relocation and wiring rules on a Goodman furnace: The junction box is shipped on the left side (right for counterflow). Line voltage can enter through either side panel after relocation.
Applies to: Gas furnace
How to fix junction box relocation and wiring rules: step by step
- Disconnect all power before relocating the junction box.
- Remove the burner compartment door.
- Remove and keep the two screws securing the junction box to the side panel.
- Move the junction box, plugs and grommets to the opposite side panel and secure with the saved screws.
- Use copper replacement wire rated at least 105°C if original harness wire is replaced.
- Label all wires before disconnecting them when servicing controls.
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 Furnace codes
Source: Goodman GMVC96 service and troubleshooting manual, p. 24-25. 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.