Marantec's verified Synergy 200- and 300-series manuals use numeric fault codes 7, 8, 9, 10, 11, 15, 16, 26, 28, 30, 35 and 36. Code 15 is the photo-eye branch; 9 points to missing RPM-sensor impulse or an obstructed operator; 10 and 28 point toward difficult, blocked or irregular door movement; 30 is an MS-Bus communication fault; 35 is an electronics fault; and 36 points to wall-control connection/reset. Both manuals place this table in a professional-installer troubleshooting section, so use it to identify the branch and keep homeowner checks low-risk.
This exact manufacturer signal can feed the following diagnostic families. Keep the original code or LED pattern when troubleshooting.
What you are likely to notice
- A Synergy 260/270/280/360/370/380 shows a numeric fault code
- You need to distinguish a photo-eye fault from mechanical resistance or electronics
- You want the exact manufacturer meaning without translating a code from another Marantec generation
Check these in order
1. Confirm the exact Synergy family
Marantec's resource library groups Synergy 260/270/280 under the 200-series owner manual and 360/370/380 under the 300-series owner manual. Both verified manuals use the same numeric fault set, but model-specific service and parts evidence still controls any repair.
2. Record the number before resetting power
Preserve the fault number and the door's last movement symptom. Codes 9, 10, 11, 16, 26 and 28 can require different mechanical or service branches even when the opener simply appears to stop.
3. Keep code 15 in the low-voltage photo-eye branch first
For code 15, check visible photo-eye wiring, alignment and beam obstruction with the door stationary. Do not bypass the photo-eye system to restore normal remote closing.
4. Treat the table as diagnostic routing, not a DIY settings menu
Marantec marks the Synergy troubleshooting section for professional installers. For 10 or 28, a homeowner can still note obvious obstruction and whether the door is mechanically abnormal, but force/sensitivity changes, codes 9/16/26/30/35, powered internal testing and any spring/cable work belong beyond the low-risk branch.
The 200- and 300-series manuals agree on the code language
Marantec's resource library assigns one owner manual to Synergy 260/270/280 and another to Synergy 360/370/380. The verified troubleshooting tables in those two manuals use the same numeric code set: 7, 8, 9, 10, 11, 15, 16, 26, 28, 30, 35 and 36.
That agreement supports one diagnostic-language family in the finder, but it does not erase model differences such as force class, speed, lighting, production date or parts. The router shares only the fault language that the manuals actually share.
Mechanical-resistance codes need a door check before opener settings
Codes 10 and 28 both include door-movement problems in the manufacturer table. That makes the door itself part of the diagnostic evidence. A blocked, stiff, irregular or badly balanced door should not be 'fixed' by raising opener force or sensitivity thresholds.
The Synergy manuals place the troubleshooting table in a professional-installer section. Homeowner-facing guidance should therefore decode the code and preserve obvious door-condition evidence, then stop before force/sensitivity adjustment, internal powered diagnosis, or high-tension spring/cable work.
Shared Synergy code numbers do not make every Marantec display interchangeable
The verified Synergy 200- and 300-series manuals share the same numeric code language, which supports one router family for those models. That does not mean an EOS M4500e/M4700e/M4900e LED combination or an M55 numeric table can be translated through the Synergy page. Confirm model family first; only then does a number such as 15, 28 or 30 have the intended display context.
Keep homeowner action on the observation side of the manual boundary. Codes that involve door resistance, photo eyes or an obvious obstruction can guide low-risk checks, but the manufacturer places the troubleshooting table in a professional-installer section. Preserve the code and symptom and stop before force/sensitivity tuning, powered internal diagnosis or spring/cable work.
- Synergy 260/270/280 or 360/370/380: use the shared numeric family.
- EOS or M55 model: switch to that model family's display table before decoding the number.
- Mechanical-resistance code + abnormal door movement: stop at the door-system condition rather than raising opener force.
Record exact Synergy model, numeric code, door behavior and any obvious photo-eye/obstruction evidence. Do not change force or sensitivity before handoff; the manufacturer places this troubleshooting table in the professional-installer section.
Stop DIY troubleshooting when…
- The exact opener is not in the verified Synergy 200/300 manual families
- The door is heavy, crooked, off-track, binding or has damaged spring/cable hardware
- A code points to internal electronics, MS-Bus, current sensing or power-overload service
- A force/sensitivity change would be used to compensate for abnormal door mechanics
Garage door springs, cables and a falling/unbalanced door can store or release dangerous force. Those are door-system problems, not just opener settings.
Common questions
What does Marantec Synergy code 15 mean?
The verified Synergy manuals place code 15 in the photo-eye branch: sensors not connected or aligned, or the beam/door path obstructed.
Is code 30 a photo-eye code?
No. Marantec identifies code 30 as an MS-Bus communication fault, so it belongs in an electronics/communication service branch rather than sensor alignment.
Can I use this table on an M4500e?
The fault numbers overlap, but M4500e/M4700e use a different eight-LED display language. Use the exact M4500e/M4700e guide to translate the LED combination first.
Manufacturer sources used
These links are the factual baseline for the diagnostic claims above. Model-specific manuals can supersede general guidance.