|
Issue |
Possible Cause |
Solution |
|
Door does not close fully |
- Improper hydraulic speed setting- Misaligned upper/lower patch- Door axis not vertical |
- Adjust Speed 1 & Speed 2 valves- Realign upper and lower patch fittings- Correct door verticality |
|
Insufficient return force / door cannot return automatically |
- Low hydraulic oil- Fatigued return spring- Mechanical blockage |
- Check for oil leakage- Replace worn components or the entire patch fitting- Clean or replace internal mechanism |
|
Closing speed too fast or too slow |
- Speed adjustment screws incorrectly set- Oil channel blockage |
- Adjust Speed 1 (opening range) & Speed 2 (final closing)- Replace unit if adjustment has no effect |
|
Noise during operation (squeaking or metal friction) |
- Loose screws- Glass touching frame- Worn spring or bearing |
- Tighten all screws- Adjust glass position- Replace internal components |
|
Hydraulic oil leakage |
- Aged sealing ring- Housing damaged by impact- Long-term heavy use |
- Replace sealing components- Replace entire patch fitting if housing is bent- Check weight compatibility (60–100kg types) |
|
Door sagging |
- Worn bearings- Overloaded glass weight- Improper installation |
- Replace bearings- Ensure correct load rating- Re-align installation positions |
|
Door shakes or is not smooth when closing |
- Internal hydraulic gap too large- Door not level/vertical- Uneven damping setting |
- Fine-tune damping- Recheck door leveling- Replace worn hydraulic module |
|
Complete failure (no damping, no return force) |
- Total oil loss- Broken spring- Overload for long periods |
- Replace hydraulic patch fitting- Inspect upper/lower clamps for additional wear |
