What is a Hopper-Burner Assembly (HBA) and how to install and remove it on your AC grill.
What is a Hopper-Burner Assembly (HBA)?
A hopper-burner assembly, HBA for short, is a combination your grill's hopper (the black box on the left side of your grill that holds your pellets) and all the major components of your grill: the controller, auger, auger motor, hot rod, and firepot.
Removing your grill's HBA is sometimes necessary in order to access certain internal components, resolve mechanical issues, and replace some parts.
To learn more about this part, see Hopper Burner Assemblies & Hopper Assemblies.
Removing & Installing an HBA
Most non-connected (AC) pellet grills use the same following steps to remove and install the HBA. However, a few models have slight variations to these steps, which are outlined after these steps here in this article.
The following instructions apply to most AC grills like the Pro 20, 22, 34, and other Pro-adjacent models such as the Lil Tex Elite, Prairie and Ridgeland.
To Remove Your HBA:
- With the grill turned off and unplugged, open the grill lid.
- Remove all internal items, such as grill grates, heat baffles, and drain pans.
- Remove the controller from the front of the hopper.
- With the controller off, take a small flathead screwdriver and disconnect the RTD probe from the controller.
- With the RTD probe disconnected, go inside the grill body, remove the RTD screws, and slowly pull the RTD out of the grill until it is completely removed.
- With the RTD removed, find the 4 screws on the inside of the grill, located on the hopper side of the grill, and remove them. In this case, it would be on the left.
- With the 4 screws removed, the hopper is now loose. Remove the 4 wing nuts holding the firepot in place.
- With the wingnuts removed, the hopper burner should slide out.
To Reinstall Your HBA:
- On the new hopper burner, remove the firepot wing nuts.
- Install the new RTD into the grill body and feed the wire through the hole in the grill body.
- Remove the controller from the new hopper burner and feed the RTD wires into it.
- Connect the RTD wires to the controller on the new HBA and then reinstall the controller onto the HBA.
- With the RTD connected to the new HBA and the wing nuts removed from the new HBA, slide the new HBA into the grill body.
- Reinstall the 4 screws holding the HBA to the grill.
- Reinstall the 4 wing nut screws into the firepot.
- Reinsert the heat baffle, drain pan, and grill grate.
Replacing an HBA on a Junior, Tailgater, or Bronson
To Remove Your HBA:
- With the grill turned off and unplugged, open the grill lid.
- Remove all internal items, such as grill grates, heat baffles, and drain pans.
- Remove the controller from the front of the hopper.
- With the controller removed, take a small flathead screwdriver and disconnect the RTD probe from the controller.
- With the RTD probe disconnected, go inside the grill body and remove the RTD screws, slowly pulling the RTD out of the grill until it is completely removed.
- With the RTD removed, find the 4 screws on the inside of the grill, located on the hopper side of the grill, and remove them. In this case, it would be on the left.
- With the 4 screws removed, the hopper is now loose. Remove the 4 wing nuts holding the firepot in place.
- With the wing nuts removed, the hopper burner should slide out.
To Reinstall Your HBA:
- On the new hopper burner, remove the firepot wing nuts.
- Install the new RTD into the grill body and feed the wire through the hole in the grill body.
- Remove the controller from the new hopper burner and feed the RTD wires into it.
- Connect the RTD wires to the controller on the new HBA and then reinstall the controller onto the new HBA.
- With the RTD connected to the new HBA and the wing nuts removed from the new HBA, slide the new HBA into the grill body.
- Reinstall the 4 screws holding the HBA to the grill.
- Reinstall the 4 wingnut screws into the firepot.
- Reinsert the heat baffle, drain pan, and grill grate.
Replacing an HBA on a Select, Select Pro, or Silverton
To Remove Your HBA:
- With the grill turned off and unplugged, open the grill lid.
- Remove all internal items, such as grill grates, heat baffles, and drain pans.
- Remove the controller from the front of the hopper.
- With the controller off, take a small flathead screwdriver and disconnect the RTD probe from the controller.
- With the RTD probe disconnected, begin removing the RTD screws inside the grill body and slowly pull the RTD out of the grill until it is completely removed.
- With the RTD removed, find the 4 (these models may have 6) screws holding the HBA on and remove them. These should be located on the inside of the grill, located on the hopper side of the grill; in this case, it would be on the left.
- With the screws removed, the hopper is now loose. Remove the 4 wing nuts holding the firepot in place.
- With the wing nuts removed, the hopper burner should slide out.
To Reinstall Your HBA:
- On the new hopper burner, remove the firepot wing nuts.
- Install the new RTD into the grill body and feed the wire through the hole in the grill body.
- Remove the controller from the new hopper burner and feed the RTD wires into it.
- Connect the RTD wires to the controller on the new HBA and then reinstall the controller onto the HBA.
- With the RTD connected to the new HBA and the wing nuts removed from the new HBA, slide the new HBA into the grill body.
- Reinstall the 4 screws holding the HBA to the grill.
- Reinstall the 4 wing nut screws into the firepot.
- Reinsert the heat baffle, drain pan, and grill grate.