Guardian / Garage door opener / Family guide
Guardian 315, 415, 425 and 428: Core Series manual selector
Core Series covers several distinct opener models. Match the full number and the manual cover, not just the series name.
Match the model before choosing a document
Identifier: Core Series 315 / 415 / 425 / 428. This guide compares a family or related models. Use the exact configuration on your label.
Models covered: 315, 415, 425, 428. They are separate configurations; compare the applicable facts and documents below.
Select the exact number from your opener label. The 315, 415, 425 and 428 each have a separate official manual.
The index's 2017 label for 415 links to a cover revised 04-21; its 428 link opens revision 03-21. The actual document cover is the reliable revision reference here.
415-3T has a separate page and manual because its rail requirements differ. Do not drop the suffix when requesting support.
Documented specifications
| 315 manufacturer power label | 1/2 HPSource: Guardian 315 owner manual · Cover |
|---|---|
| 415 manufacturer power label | 1/2 HPSource: Guardian 415 owner manual · Cover |
| 425 manufacturer power label | 1/2 HPSource: Guardian 425 owner manual · Cover |
| 428 manufacturer power label | 3/4 HPSource: Guardian 428 owner manual · Cover |
| Door scope in all four manuals | Residential sectional doorsEach exact manual independently states this limitation.Source: Guardian 415 owner manual · Cover |
Official documents & support
These links open the manufacturer’s document or support page. Manuals are hosted by their issuer.
- owner manual
Cover identifies 315 and revision 4-14; serial-label location is described as the side panel.
Models: 315enDocument: 4-14United States - owner manual
Cover identifies 415 and 04-21 despite the older link label. Not 415-3T.
Models: 415enDocument: 04-21; GDOMU10A-12United States - owner manual
Cover identifies 425 and 9-17.
Models: 425enDocument: 9-17; GDOMU11A-5United States - owner manual
Cover identifies 428 and 03-21 despite the older link label.
Models: 428enDocument: 03-21; GDOMU16A-5United States
Before applying these details
- Power labels are preserved as printed; they are not a cross-brand lifting comparison.
- A manual archive does not establish current production or replacement-part availability.
Sources & scope
- Guardian official manual indexGuardian Access & Door Hardware · checked 2026-09-11
- Guardian 315 owner manualGuardian Access & Door Hardware · checked 2026-09-11 · 4-14
- Guardian 415 owner manualGuardian Access & Door Hardware · checked 2026-09-11 · 04-21; GDOMU10A-12
- Guardian 425 owner manualGuardian Access & Door Hardware · checked 2026-09-11 · 9-17; GDOMU11A-5
- Guardian 428 owner manualGuardian Access & Door Hardware · checked 2026-09-11 · 03-21; GDOMU16A-5
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.