Linear / Garage door opener / Family guide
Linear LDO33 and LDO50: identify the model and select the manual
These two single-light openers share a homeowner document but have different manufacturer power labels.
Match the model before choosing a document
Identifier: LDO33 / LDO50. This guide compares a family or related models. Use the exact configuration on your label.
Models covered: LDO33, LDO50. They are separate configurations; compare the applicable facts and documents below.
Read the complete model identifier before choosing parts. LDO33 is labelled 1 / 3 HP; LDO50 is labelled 1/2 HP.
The shared homeowner instructions cover both identifiers. Shared instructions establish document coverage, not interchangeable motors or electronics.
Check the installed rail separately: both models have belt and chain configurations. A photograph of the opener housing alone does not identify the drive.
Documented specifications
| LDO33 power label | 1/3 HPSource: Linear LDO33 specifications · Description |
|---|---|
| LDO50 motor | 1/2 HP ACSource: Linear LDO50 data sheet · Page 1 |
| LDO33 drive options | Belt or chainSource: Linear LDO33 specifications · Features |
| LDO50 drive options | Belt or chain; T or I railSource: Linear LDO50 data sheet · Page 1 |
Official documents & support
These links open the manufacturer’s document or support page. Manuals are hosted by their issuer.
- owner manual
The official index lists this same homeowner document for both models; use the exact model when ordering parts.
Models: LDO33, LDO50enRevision not verifiedUnited States - datasheet
LDO50-only sheet; its motor specification does not apply to LDO33.
Models: LDO50enDocument: 943393294 Rev-L 04/2023United States
Before applying these details
- This is a document-selection grouping of two models, not a claim that they are one product.
- The LDO33 product page names different remote models in its feature and package lists; included remote identity is not asserted.
Sources & scope
- Nice/Linear product manualsNice/Linear · checked 2026-09-11
- Linear LDO33 specificationsNice/Linear · checked 2026-09-11
- Linear LDO50 data sheetNice/Linear · checked 2026-09-11 · 943393294 Rev-L 04/2023
- Linear LDO33 / LDO50 homeowner instructionsNice/Linear · checked 2026-09-11
Anderson prepared this independent reference from the listed sources. It is not the manufacturer’s official support site, an installation inspection or a product test. Current stock, parts availability and warranty entitlement are not established by a listing.
Need service in Connecticut? Check Anderson’s listed service areas or describe your equipment and symptom. This national reference library does not imply nationwide repair coverage.