Garage Door Openers · parts
Genie 3020H and 3020H-B cover parts: exact model match
Quick answer: Genie groups 3020H and 3020H-B on one exact parts diagram, listing 39366A.S for the powerhead cover and 39368A.S for the light lens. The 39366A.S product page independently names both model labels. This lookup is limited to the two H labels and to exterior cover/lens identification.
Safety boundary
- Read the complete opener model label, including every letter suffix, and identify whether the damaged item is the powerhead cover or the separate light lens before checking a row.
- This is an identification lookup, not a cover-removal guide. If an owner's manual permits work on that cover, disconnect electrical power as that exact manual directs; keep the Safe-T-Beam system installed and active.
- Do not open or repair internal opener components, bypass safety sensors, or work on springs, cables, door balance, tracks, or other high-force door hardware. Use a trained garage-door technician for those conditions.
Compatibility requires a direct model listing, explicit supersession, or equivalent manufacturer evidence.
Models explicitly covered
These model identities have the source evidence listed below. Read the part decision and suffix limits before ordering.
Required identifiers
- Complete opener label exactly 3020H or 3020H-B
- Identify powerhead cover versus light-lens cover
Compatibility rules
- Genie's exact 3020H/3020H-B diagram labels powerhead cover 39366A.S and light-lens cover 39368A.S for the grouped models.
- The direct 39366A.S item page separately names both 3020H and 3020H-B, resolving the B-suffix question for that part.
- Use this only for the two complete H labels. No broader 3020-family cover fit is claimed.
Never assume
- A 3020H part number automatically applies to a different 3020-series model.
- A B suffix changes or preserves every component; use direct evidence for the named cover only.
- The diagram is an internal repair or cover-removal instruction.
Quick answer
- Powerhead cover: 39366A.S for 3020H and 3020H-B.
- Light-lens cover: 39368A.S in the Genie family diagram for those two labels.
Match the label before using the row
Genie's direct page for 39366A.S names both 3020H and 3020H-B. The diagram separately labels the light-lens cover 39368A.S. Keep those part categories separate and do not generalize to another Genie 3020 code.
If a label differs, stop and check that exact model with Genie. The safety section applies; this page does not give cover access or repair instructions.
Safety boundary
- Read the complete opener model label, including every letter suffix, and identify whether the damaged item is the powerhead cover or the separate light lens before checking a row.
- This is an identification lookup, not a cover-removal guide. If an owner's manual permits work on that cover, disconnect electrical power as that exact manual directs; keep the Safe-T-Beam system installed and active.
- Do not open or repair internal opener components, bypass safety sensors, or work on springs, cables, door balance, tracks, or other high-force door hardware. Use a trained garage-door technician for those conditions.