Genie 34439S.S Series II Safe-T-Beam Extension Kit Details
The Genie 34439S.S is a Series II Safe-T-Beam extension kit / bracket extension bulk pack for select Genie garage door opener safety sensor installations. It is used as supporting hardware around the photo-eye system, not as a control board or operator logic component.
This part may be needed when the original safety sensor bracket extension is missing, damaged, or will not hold the sensor in the proper mounting position. Correct safety beam alignment is required for safe closing operation, so bracket hardware should be replaced with the correct style rather than improvised or bypassed.
Compatible With
- Select Genie models and service diagrams that list 34439S.S as the Series II STB extension kit
- Commonly shown with Genie 3022, 3024, 3042, 3062, 4022, 4042, AC Chain Drive, DC Belt Drive, and related opener service parts diagrams
- Used with Safe-T-Beam safety sensor mounting applications where Series II bracket extension hardware is required
- Not a replacement for Genie Series III STB extension kits such as 37909R.S or 37909S.S unless the parts diagram confirms supersession
- Not a replacement for the safety sensor pair, wall console, circuit board, or wiring
Features & Specifications
| Feature | Specification |
|---|
| Manufacturer | Genie |
| Product Type | Safe-T-Beam extension kit / bracket extension |
| Part Number | 34439S.S |
| Series | Series II STB extension hardware |
| Application | Select Genie garage door opener safety beam mounting applications |
| Safety Monitoring | Used with Genie Safe-T-Beam photo-eye systems |
| Included Components | Bulk pack extension kit unless otherwise specified |
| Notes | Match Series II vs Series III parts before ordering |
Also Known As / Related Part Numbers
- 34439S.S
- GE-34439S.S
- 34439SS
- Genie Series II STB Extension Kit
- Genie KIT STB EXT BULK PK
- Related but different: 34439R.S STB bracket kit, 37909R.S / 37909S.S Series III STB extension kits, 37220R Safe-T-Beam sensor kit
Technician Note
If the opener will not close and the safety beam LEDs are off, flashing, or misaligned, check sensor wiring, sensor condition, bracket position, and door track mounting before replacing only the bracket extension. This kit supports the photo-eye mounting position but does not replace failed sensors.
Before Ordering
- Confirm the parts diagram calls for 34439S.S or Series II STB extension hardware
- Verify whether the opener uses Series II or Series III safety beam bracket hardware
- Inspect the Safe-T-Beam sensors and wiring for damage
- Do not use this part as a substitute for a sensor pair or circuit board
- Never bypass Genie safety sensors to make an opener close
Professional Advisory
Garage door safety sensors are required safety devices. If the door closes without working photo eyes, reverses unpredictably, or has damaged sensor wiring, stop using the opener until the safety system is repaired by a qualified garage door technician.
Questions & Answers
Is Genie 34439S.S a circuit board?
No. The 34439S.S is a Series II Safe-T-Beam extension kit / bracket extension part, not a sequencer board or logic board.
Does this kit include the Safe-T-Beam sensors?
It should be treated as bracket extension hardware unless the product listing states otherwise. The photo-eye sensor pair is a separate part.
What is the difference between Series II and Series III STB extension kits?
Series II and Series III safety beam bracket hardware may use different parts. Match the part number in the opener parts diagram before ordering.
Can I bypass the sensors instead of replacing bracket hardware?
No. Safety sensors should not be bypassed. The opener must have properly installed and aligned photo eyes for safe operation.
What should I check if the safety beams will not align?
Check the mounting brackets, track position, wiring, sensor lenses, LED indicators, and sensor pair condition before replacing only the bracket extension.
