| LED not lighting |
Replace parts without checking flow threshold. |
Confirm minimum flow + clean inlet screen. |
Verify stops open, confirm stable flow above LED threshold, clean debris at inlet screen/aerator, then retest illumination. |
| Flicker |
Ignore pressure swings and supply instability. |
Stabilize pressure/flow before concluding defect. |
Check for municipal pressure variation, partially closed stops, clogged aerator; verify steady flow and stable indicator output. |
| Low flow |
Remove restrictor without documenting outcomes. |
Clear flow path first; keep conservation intent. |
Clean aerator/screen, verify line pressure, check debris; only then evaluate flow targets and user experience. |
| Leaks at base |
Over-tighten and crack seals. |
Follow correct gasket/seal installation. |
Inspect gasket alignment, verify mounting surface flatness, tighten evenly, leak test under full pressure. |
| Hot/cold confusion |
Assume LED equals thermostatic control. |
Commission mixing/limit stops for safety. |
Confirm actual delivered temperature, set limit stop, and verify indicator behavior aligns with delivered temperature ranges. |
| Noise |
Ignore hammer and vibration. |
Mitigate shock and stabilize supply. |
Check pressure shock; add mitigation if required; confirm secure mounting and stable valve transitions. |
| Hard-water scaling |
Wait for severe blockage. |
Set PM interval for aerator cleaning. |
Define periodic aerator/service cleaning; add filtration where supply quality causes chronic deposits. |
| Inconsistent installs |
Skip acceptance checks across multiple rooms. |
Standardize commissioning across the property. |
Record baseline flow + indicator behavior by location; repeat the same acceptance steps for each install batch. |