Rheem AM39922-1 Burner Assembly Kit (RG40S-40 NG)
An OEM Rheem natural-gas burner assembly kit used to replace the burner assembly on specified Rheem residential gas water heaters when the correct RG40S-40 natural gas burner kit is required.
Key Features
- Natural gas burner assembly kit (Fuel Type: Natural Gas)
- Application listed as Replacement Part
- Burner assembly kit includes all OEM replacement water heater components to replace burner assembly
Compatibility & Applications
- Listed for RG40S-40 (Natural Gas) applications as named on the product listing.
- Must only be used where the manufacturer specifies this exact part number: AM39922-1 (verify by water heater model/serial and the unit's parts information before ordering).
Installation & Operation Notes
- Installation should be performed by a qualified water-heater service technician experienced with gas appliances.
- Reference the water heater's service/installation manual for safe shutdown, burner compartment access, proper reassembly, and leak/operation checks after replacement.
Maintenance & Troubleshooting
- This kit is commonly replaced when burner/pilot operation is unreliable or the heater is not heating properly and diagnosis points to the burner assembly.
- User feedback specifically links replacement to resolving a pilot that would blow out when the burner lit and restoring normal operation.
- If problems persist after replacement, follow the water heater troubleshooting guidance to confirm combustion air, venting, and related ignition/safety components are operating correctly.
User Reviews & Q&A Summary
- Direct-fit and complete kit: Reviewers frequently describe it as a direct replacement that feels well-built and complete.
- Fast, straightforward swap: Many report a quick changeout (often around 20 minutes) and that it's DIY-friendly for experienced users.
- Problem resolved: Common outcome is restoring reliable burner/pilot operation and getting hot water back quickly.
- Customer service / ordering confidence: Reviews highlight helpful support identifying the right part using the heater's model/serial, plus positive experiences with shipping speed and returns when mistakes were made.